APA (7e ed.) Bronvermelding

Penguin Books. (1945). Ten Years of Penguins: 1935-1945. Penguin Books.

Chicago (17e ed.) Bronvermelding

Penguin Books. Ten Years of Penguins: 1935-1945. Harmondsworth [u.a.]: Penguin Books, 1945.

MLA (8e ed.) Bronvermelding

Penguin Books. Ten Years of Penguins: 1935-1945. Penguin Books, 1945.