Allaby, A. and M. Allaby. (Editors). 1999. Dictionary of Earth Sciences. 2nd Edition. Oxford University press, London. (Excellent dictionary of more than 6,000 earth science terms many of which are used in physical geography - browse/buy from amazon.com or amazon.ca)

Bailey, T.C. and A.C. Gatrell. 1996. Interactive Spatial Data Analysis. Prentice Hall. (University-level textbook that explores geostatistics - browse/buy from amazon.com or amazon.ca)

Burt, J.E. and G.M. Barber. 1996. Elementary Statistics for Geographers. 2nd Edition. The Guilford Press, New York. (University-level textbook that examines the use of statistics in geographic problem solving - browse/buy from amazon.com or amazon.ca)

Clark, W.A.V. and P.L. Hoskins. 1986. Statistical Methods for Geographers. John Wiley, New York. (Classic university-level textbook that examines the use of statistics in geographic problem solving - browse/buy from amazon.com or amazon.ca)

Ebdon, D. 1986. Statistics in Geography. Second Edition. Basil Blackwell, Oxford. (University-level textbook that examines the use of statistics in geographic problem solving - browse/buy from amazon.com or amazon.ca)

Fotheringham, A.S., C. Brunsdon, and M. Charlton. 2000. Quantitative Geography: Perspectives on Spatial Data Analysis. Sage Publications, London. (University-level textbook that explores geostatistics - browse/buy from amazon.com or amazon.ca)

Gregory, K.J. 2001. The Changing Nature of Physical Geography. Edward Arnold, London. (Very interesting university-level textbook that explores the historical evolution of thought and methods in physical geography - browse/buy from amazon.com or amazon.ca)

Griffith, D.A. and C.G. Amrhein. 1991. Statistical Analysis for Geographers. Prentice Hall, Englewood Cliffs, New Jersey. (University-level textbook that examines the use of statistics in geographic problem solving - browse/buy from amazon.com or amazon.ca)

Griffith, D.A. and C.G. Amrhein. 1997. Multivariate Statistical Analysis for Geographers. Prentice Hall, Englewood Cliffs, New Jersey. (University-level textbook that examines the use of multivariate statistics in geographic problem solving - browse/buy from amazon.com or amazon.ca)

Haring, L.L., J.F. Lounsbury, and J.W. Frasier. 1992. Introduction to Scientific Geographic Research. Fourth Edition. Wm. C. Brown, Dubuque, Iowa. (Very interesting university-level textbook that discusses the application of scientific method to the study of physical geography - browse/buy from amazon.com or amazon.ca)

Hecht, J. 1995. The geological timescale. Inside Science 81. New Scientist May 20.

Holton, G., H. Chang, and E. Jurkowitz. 1996. How a scientific discovery is made: a case history. American Scientist 84: 364-376.

McGrew, J.C. and C.B. Monroe. 2000. An Introduction to Statistical Problem Solving in Geography. 2nd Edition. McGraw-Hill, Dubuque, Iowa. (Excellent university-level textbook that describes the use of descriptive and inferential statistics for problem solving in geography - browse/buy from amazon.com or amazon.ca)

Parker, S.P. (Editor). 2003. McGraw-Hill Dictionary of Earth Science. Second Edition. McGraw-Hill, New York. (Excellent dictionary of more than 10,000 earth science terms many of which are used in physical geography - browse/buy from amazon.com or amazon.ca)

Rogerson, P.A. 2001. Statistical Methods for Geography. Sage Publications, London. (University-level textbook that examines the use of statistics in geographic problem solving - browse/buy from amazon.com or amazon.ca)

Shaw, G. and D. Wheeler. 1994. Statistical Techniques in Geographical Analysis. Second Edition. David Fulton Publishers, London. (University-level textbook that examines the use of statistics in geographic problem solving - browse/buy from amazon.com or amazon.ca)

Silk, J. 1979. Statistical Concepts in Geography. George Allen and Unwin, Boston. (University-level textbook that examines the use of statistics in geographic problem solving - browse/buy from amazon.com or amazon.ca)

Strahler, Alan H. and Arthur Strahler. 2003. Physical Geography: Science and Systems of the Human Environment. 2nd Edition John Wiley and Sons, New York. (Excellent university-level textbook that focuses broadly on physical geography. Some discussion on science and physical geography - browse/buy from amazon.com or amazon.ca)

Whitlow, J.B. 2001. The Penguin Dictionary of Physical Geography. Second Edition. Penguin, Harmondsworth. (Must have reference for those wanting to learn physical geography terms - browse/buy from amazon.com or amazon.ca)