APA (7th ed.) Citation

Trewartha, G. T., Hammond, E. H., & Robinson, A. H. (1968). Fundamentals of physical geography (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Trewartha, Glenn T., Edwin H. Hammond, and Arthur H. Robinson. Fundamentals of Physical Geography. 2nd ed. New York: McGraw-Hill, 1968.

MLA (9th ed.) Citation

Trewartha, Glenn T., et al. Fundamentals of Physical Geography. 2nd ed. McGraw-Hill, 1968.