Cita APA (7th ed.)

Snooks, G. D. (1998). The laws of history. Routledge.

Cita Chicago (17th ed.)

Snooks, G. D. The Laws of History. London ; New York: Routledge, 1998.

Cita MLA (9th ed.)

Snooks, G. D. The Laws of History. Routledge, 1998.

Atenció: Aquestes cites poden no estar 100% correctes.