Cita APA (7a ed.)

Wheen, F. (2000). Karl Marx (1a.ed.). Debate.

Cita Chicago Style (17a ed.)

Wheen, Francis. Karl Marx. 1a.ed. Madrid: Debate, 2000.

Cita MLA (8a ed.)

Wheen, Francis. Karl Marx. 1a.ed. Debate, 2000.