Cita APA (7a ed.)

McLellan, D. (1995). Karl Marx: A biography. Papermac.

Cita Chicago Style (17a ed.)

McLellan, David. Karl Marx: A Biography. London: Papermac, 1995.

Cita MLA (9a ed.)

McLellan, David. Karl Marx: A Biography. Papermac, 1995.