APA (7th ed.) Citation

Flechtheim, O. K. (1985). Karl Liebknecht zur Einführung.

Chicago Style (17th ed.) Citation

Flechtheim, Ossip K. Karl Liebknecht Zur Einführung. 1985.

MLA (8th ed.) Citation

Flechtheim, Ossip K. Karl Liebknecht Zur Einführung. 1985.

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