APA (7th ed.) Zitazioa

Couper, A. D. (1972). The geography of sea transport. Hutchin University Library.

Chicago Style (17th ed.) Zitazioa

Couper, A. D. The Geography of Sea Transport. London: Hutchin University Library, 1972.

MLA (9th ed.) Zitazioa

Couper, A. D. The Geography of Sea Transport. Hutchin University Library, 1972.