APA način citiranja

Engels, F. (1949). The Part played by labour in the transition from ape to man.

Čikaški stil citiranja

Engels, Friedrich. The Part Played by Labour in the Transition from Ape to Man. Moscow, 1949.

MLA način citiranja

Engels, Friedrich. The Part Played by Labour in the Transition from Ape to Man. 1949.