APA (7th ed.) Citation

Pelka, O. (1920). Elfenbein. R.C. Schmidt.

Chicago Style (17th ed.) Citation

Pelka, Otto. Elfenbein. Berlin: R.C. Schmidt, 1920.

MLA (9th ed.) Citation

Pelka, Otto. Elfenbein. R.C. Schmidt, 1920.

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