Παραπομπή σε μορφή APA (7η εκδ.)

Cooke, R. U., & Doornkamp, J. C. (1990). Geomorphology in environmental management: A new introduction (2nd ed.). Clarendon Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cooke, Ronald U., και John Charles Doornkamp. Geomorphology in Environmental Management: A New Introduction. 2nd ed. Oxford: Clarendon Press, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

Cooke, Ronald U., και John Charles Doornkamp. Geomorphology in Environmental Management: A New Introduction. 2nd ed. Clarendon Press, 1990.