Orr, A. P., & Marshall, S. M. (1969). The fertile sea: Being the buckland lectures for 1957. Fishing News Books.
Chicago Style (17th ed.) ZitazioaOrr, Andrew Picken, eta Sheina M. Marshall. The Fertile Sea: Being the Buckland Lectures for 1957. Londres: Fishing News Books, 1969.
MLA (9th ed.) ZitazioaOrr, Andrew Picken, eta Sheina M. Marshall. The Fertile Sea: Being the Buckland Lectures for 1957. Fishing News Books, 1969.
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