APA (7th ed.) Citation

Orr, A. P., & Marshall, S. M. (1969). The fertile sea: Being the Buckland Lectures for 1957. Fishing News (Books).

Chicago Style (17th ed.) Citation

Orr, A. P., and S. M. Marshall. The Fertile Sea: Being the Buckland Lectures for 1957. London: Fishing News (Books), 1969.

MLA (9th ed.) Citation

Orr, A. P., and S. M. Marshall. The Fertile Sea: Being the Buckland Lectures for 1957. Fishing News (Books), 1969.