Cita APA (7th ed.)

Engels, F. (1964). Dialectics of nature. Progress.

Cita Chicago (17th ed.)

Engels, Frederick. Dialectics of Nature. Moscow: Progress, 1964.

Cita MLA (9th ed.)

Engels, Frederick. Dialectics of Nature. Progress, 1964.

Atenció: Aquestes cites poden no estar 100% correctes.