APA (7th ed.) Citation

Longwell, C. R., Flint, R. F., & Sanders, J. E. (1969). Physical geology. Wiley.

Chicago Style (17th ed.) Citation

Longwell, Chester R., Richard Foster Flint, and John Essington Sanders. Physical Geology. New York: Wiley, 1969.

MLA (9th ed.) Citation

Longwell, Chester R., et al. Physical Geology. Wiley, 1969.