एपीए उद्धरण

Engels,Frederick. (1954). Dialectics of nature. Foreign Languages Publishing House.

शिकागो स्टाइल उद्धरण

Engels,Frederick. Dialectics of Nature. Moscow: Foreign Languages Publishing House, 1954.

एमएलए उद्धरण

Engels,Frederick. Dialectics of Nature. Foreign Languages Publishing House, 1954.