Cita APA (7th ed.)

Small, R. J. (1970). the study of landforms: Or textbooks of Geomorphology. Cambridge.

Cita Chicago (17th ed.)

Small, R. J. The Study of Landforms: Or Textbooks of Geomorphology. London: Cambridge, 1970.

Cita MLA (9th ed.)

Small, R. J. The Study of Landforms: Or Textbooks of Geomorphology. Cambridge, 1970.