APA (7th ed.) Citation

Loria, A., Paul, E., & Paul, C. (1920). Karl Marx. T. Seltzer.

Chicago Style (17th ed.) Citation

Loria, Achille, Eden Paul, and Cedar Paul. Karl Marx. New York: T. Seltzer, 1920.

MLA (9th ed.) Citation

Loria, Achille, et al. Karl Marx. T. Seltzer, 1920.

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