Cita APA (7th ed.)

Cramp, S., Bourne, W. R. P., & Saunders, D. (1975). The seabirds of Britain and Ireland (2d ed.). Collins.

Cita Chicago (17th ed.)

Cramp, Stanley, William Richmond Postle Bourne, i David Saunders. The Seabirds of Britain and Ireland. 2d ed. London: Collins, 1975.

Cita MLA (8th ed.)

Cramp, Stanley, et al. The Seabirds of Britain and Ireland. 2d ed. Collins, 1975.