APA (7th ed.) Citation

Cramp, S., Bourne, W. R. P., & Saunders, D. (1974). The seabirds of Britain and Ireland. Collins.

Chicago Style (17th ed.) Citation

Cramp, Stanley, William Richmond Postle Bourne, and David Saunders. The Seabirds of Britain and Ireland. London: Collins, 1974.

MLA (9th ed.) Citation

Cramp, Stanley, et al. The Seabirds of Britain and Ireland. Collins, 1974.