Citazione Stile APA (7a Edizione)

Loftas, T. (1972). The last resource: Man's exploitation of the oceans (Rev. ed.). Penguin.

Citazione stile Chigago Style (17a edizione)

Loftas, Tony. The Last Resource: Man's Exploitation of the Oceans. Rev. ed. Harmondsworth: Penguin, 1972.

Citatione MLA (8a ed.)

Loftas, Tony. The Last Resource: Man's Exploitation of the Oceans. Rev. ed. Penguin, 1972.