Style de citation APA

(1976). Purnell's find out about wonders of the world. Purnell Books.

Style de citation Chicago

Purnell's Find Out About Wonders of the World. Maidenhead: Purnell Books, 1976.

Style de citation MLA

Purnell's Find Out About Wonders of the World. Purnell Books, 1976.

Attention : ces citations peuvent ne pas être correctes à 100%.