Cita APA (7a ed.)

Robertson, D., & Kingsbury, R. (1978). Survive the savage sea. Longman.

Cita Chicago Style (17a ed.)

Robertson, Dougal, y Roy Kingsbury. Survive the Savage Sea. Londres: Longman, 1978.

Cita MLA (9a ed.)

Robertson, Dougal, y Roy Kingsbury. Survive the Savage Sea. Longman, 1978.