Cita APA (7th ed.)

Flint, R. F., & Skinner, B. J. (1977). Physical geology (2nd ed.). Wiley.

Cita Chicago (17th ed.)

Flint, Richard Foster, i Brian J. Skinner. Physical Geology. 2nd ed. New York: Wiley, 1977.

Cita MLA (9th ed.)

Flint, Richard Foster, i Brian J. Skinner. Physical Geology. 2nd ed. Wiley, 1977.