Cita APA (7th ed.)

Engels, F. (1989). Socialism: Utopian and scientific. Pathfinder.

Cita Chicago (17th ed.)

Engels, Frederick. Socialism: Utopian and Scientific. New York: Pathfinder, 1989.

Cita MLA (9th ed.)

Engels, Frederick. Socialism: Utopian and Scientific. Pathfinder, 1989.