APA (7th ed.) Citation

Knapp, F. (1935). Grünewald. Velhagen & Klasing.

Chicago Style (17th ed.) Citation

Knapp, Fritz. Grünewald. Bielefeld: Velhagen & Klasing, 1935.

MLA (9th ed.) Citation

Knapp, Fritz. Grünewald. Velhagen & Klasing, 1935.

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