DK Publishing, Inc. (2013). The politics book (First American edition.). Dorling Kindersley Limited.
Cita Chicago (17th ed.)DK Publishing, Inc. The Politics Book. First American edition. London: Dorling Kindersley Limited, 2013.
Cita MLA (9th ed.)DK Publishing, Inc. The Politics Book. First American edition. Dorling Kindersley Limited, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.