Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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