APA (7th ed.) Citation

Cotton, C. A. (1945). Geomorphology: An introduction to the study of landforms (4th ed., rev.). John Wiley and sons.

Chicago Style (17th ed.) Citation

Cotton, C. A. Geomorphology: An Introduction to the Study of Landforms. 4th ed., rev. New York: John Wiley and sons, 1945.

MLA (9th ed.) Citation

Cotton, C. A. Geomorphology: An Introduction to the Study of Landforms. 4th ed., rev. John Wiley and sons, 1945.