Style de citation APA (7e éd.)
O'Brien Derek. (2004). Gk with derek the ultimate general knowledge and quiz compendium: 3 science and wildlife. Penguin Books.
Style de citation Chicago (17e éd.)
O'Brien Derek. Gk with Derek the Ultimate General Knowledge and Quiz Compendium: 3 Science and Wildlife. New Delhi: Penguin Books, 2004.
Style de citation MLA (9e éd.)
O'Brien Derek. Gk with Derek the Ultimate General Knowledge and Quiz Compendium: 3 Science and Wildlife. Penguin Books, 2004.
Attention : ces citations peuvent ne pas être correctes à 100%.