APA (7th ed.) Citation

Knapp, F. (1930). Vincent van Gogh. Velhagen & Klasing.

Chicago Style (17th ed.) Citation

Knapp, Fritz. Vincent Van Gogh. Bielefeld [u.a.]: Velhagen & Klasing, 1930.

MLA (9th ed.) Citation

Knapp, Fritz. Vincent Van Gogh. Velhagen & Klasing, 1930.

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