APA (7th ed.) Citation

Borgius, W. (1908). Warum ich Esperanto verliess. Liebheit & Thiesen.

Chicago Style (17th ed.) Citation

Borgius, Walther. Warum Ich Esperanto Verliess. Berlin: Liebheit & Thiesen, 1908.

MLA (9th ed.) Citation

Borgius, Walther. Warum Ich Esperanto Verliess. Liebheit & Thiesen, 1908.

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