APA (7th ed.) Citation

Krüger, A., Engels, F., & Marx, K. (1982). August 1849 bis Juni 1851.

Chicago Style (17th ed.) Citation

Krüger, Anni, Friedrich Engels, and Karl Marx. August 1849 Bis Juni 1851. 1982.

MLA (8th ed.) Citation

Krüger, Anni, et al. August 1849 Bis Juni 1851. 1982.

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