APA aipamena

Jonsson, L. (1978). Birds of sea and coast. Penguin Books.

Chicago Style aipamena

Jonsson, Lars. Birds of Sea and Coast. England: Penguin Books, 1978.

MLA aipamena

Jonsson, Lars. Birds of Sea and Coast. Penguin Books, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.