Cita APA

Longwell, C. R., Knopf, A., & Flint, R. F. (1948). Physical geology (3rd ed.). Wiley.

Citación estilo Chicago

Longwell, Chester R., Adolph Knopf, and Richard Foster Flint. Physical Geology. 3rd ed. New York: Wiley, 1948.

Cita MLA

Longwell, Chester R., et al. Physical Geology. 3rd ed. Wiley, 1948.