APA (7th ed.) Citation

Cotton, C. A. (1949). Geomorphology: An introduction to the study of landforms (5th ed., rev.). Wiley.

Chicago Style (17th ed.) Citation

Cotton, Charles Andrew. Geomorphology: An Introduction to the Study of Landforms. 5th ed., rev. New York: Wiley, 1949.

MLA (9th ed.) Citation

Cotton, Charles Andrew. Geomorphology: An Introduction to the Study of Landforms. 5th ed., rev. Wiley, 1949.