APA (7th ed.) Citation

Mackenzie,John P.S. (1987). Birds of the world: Seabirds. Harrap.

Chicago Style (17th ed.) Citation

Mackenzie,John P.S. Birds of the World: Seabirds. London: Harrap, 1987.

MLA (9th ed.) Citation

Mackenzie,John P.S. Birds of the World: Seabirds. Harrap, 1987.

Warning: These citations may not always be 100% accurate.