APA (7th ed.) Citation

Jansen, C. (1991). Emil Julius Gumbel: Portrait eines Zivilisten. Wunderhorn.

Chicago Style (17th ed.) Citation

Jansen, Christian. Emil Julius Gumbel: Portrait Eines Zivilisten. Heidelberg: Wunderhorn, 1991.

MLA (8th ed.) Citation

Jansen, Christian. Emil Julius Gumbel: Portrait Eines Zivilisten. Wunderhorn, 1991.

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