APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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