APA (7th ed.) Citation

American Geological Institute. Council on Education in the Geological Sciences, Fenner, P., & Krumbein, W. C. (1969). Models of geologic processes: An introduction to mathematical geology. American Geological Institute.

Chicago Style (17th ed.) Citation

American Geological Institute. Council on Education in the Geological Sciences, Peter Fenner, and W. C. Krumbein. Models of Geologic Processes: An Introduction to Mathematical Geology. Washington: American Geological Institute, 1969.

MLA (8th ed.) Citation

American Geological Institute. Council on Education in the Geological Sciences, et al. Models of Geologic Processes: An Introduction to Mathematical Geology. American Geological Institute, 1969.