Cita APA (7th ed.)

O'Connon, K. O., & Sabato, L. (2003). The essentials of American government: Continuity and change. Longman.

Cita Chicago (17th ed.)

O'Connon, Karen O., i Larry Sabato. The Essentials of American Government: Continuity and Change. New York: Longman, 2003.

Cita MLA (9th ed.)

O'Connon, Karen O., i Larry Sabato. The Essentials of American Government: Continuity and Change. Longman, 2003.