Cita APA (7th ed.)

Sparks, B. W. (1970). Geomorphology. Longmans.

Cita Chicago (17th ed.)

Sparks, B. W. Geomorphology. London: Longmans, 1970.

Cita MLA (9th ed.)

Sparks, B. W. Geomorphology. Longmans, 1970.