APA (7th ed.) Citation

Sommer, R. (1925). Tierpsychologie. Quelle & Meyer.

Chicago Style (17th ed.) Citation

Sommer, Robert. Tierpsychologie. Leipzig: Quelle & Meyer, 1925.

MLA (9th ed.) Citation

Sommer, Robert. Tierpsychologie. Quelle & Meyer, 1925.

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