Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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