APA (7th ed.) Citation

Lang, R. (1998). Erich Mühsam in Friedrichshagen.

Chicago Style (17th ed.) Citation

Lang, Rolf. Erich Mühsam in Friedrichshagen. Berlin, 1998.

MLA (8th ed.) Citation

Lang, Rolf. Erich Mühsam in Friedrichshagen. 1998.

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