APA (7th ed.) Citation

Engels, F. Principios de comunismo / Friedrich Engels. México, D.F. : Editorial Popular, 1939.

Chicago Style (17th ed.) Citation

Engels, Friedrich. Principios De Comunismo / Friedrich Engels. México, D.F. : Editorial Popular, 1939.

MLA (8th ed.) Citation

Engels, Friedrich. Principios De Comunismo / Friedrich Engels. México, D.F. : Editorial Popular, 1939.

Warning: These citations may not always be 100% accurate.