Cita APA (7a ed.)
O'Brien, D. (2004). Gk with derek the ultimate general knowledge and quiz com ndium: 2 business. PenguinBooks.
Cita Chicago Style (17a ed.)
O'Brien, Derek. Gk with Derek the Ultimate General Knowledge and Quiz Com Ndium: 2 Business. New Delh: PenguinBooks, 2004.
Cita MLA (9a ed.)
O'Brien, Derek. Gk with Derek the Ultimate General Knowledge and Quiz Com Ndium: 2 Business. PenguinBooks, 2004.
Precaución: Estas citas no son 100% exactas.