Cita APA (7a ed.)

Longwell, C. R., Knopf, A., & Flint, R. F. (1946). A textbook of geology: Physical geology. John Wiley.

Cita Chicago Style (17a ed.)

Longwell, Chester R., Adolph Knopf, y Richard Foster Flint. A Textbook of Geology: Physical Geology. Nueva York: John Wiley, 1946.

Cita MLA (8a ed.)

Longwell, Chester R., et al. A Textbook of Geology: Physical Geology. John Wiley, 1946.