Cita APA (7th ed.)

PITTY, A. F. (1982). The nature of geomorphology. Methuen.

Cita Chicago (17th ed.)

PITTY, Alistair F. The Nature of Geomorphology. London: Methuen, 1982.

Cita MLA (9th ed.)

PITTY, Alistair F. The Nature of Geomorphology. Methuen, 1982.