Lenz, T. O., & Holman, M. (2018). American Government, Second Edition (Second edition.). Orange Grove Texts Plus.
Cita Chicago (17th ed.)Lenz, Timothy O., i Mirya Holman. American Government, Second Edition. Second edition. Gainesville [Florida]: Orange Grove Texts Plus, 2018.
Cita MLA (9th ed.)Lenz, Timothy O., i Mirya Holman. American Government, Second Edition. Second edition. Orange Grove Texts Plus, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.