Wenn zwei das gleiche tun; drei einakter

Chicago citation style
Ertler, Bruno, 1889-1927. Wenn zwei das gleiche tun; drei einakter. 1921. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009404893. (Accessed December 19, 2018.)
APA citation style
Ertler, Bruno, 1889-1927, (1921) Wenn zwei das gleiche tun; drei einakter. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009404893
MLA citation style
Ertler, Bruno, 1889-1927. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/009404893>.
Note: These citations are programmatically generated and may be incomplete.