APA (7th ed.) Citation

Sonntag, W. (1958). Fridtjof Nansen. Kiepenheuer.

Chicago Style (17th ed.) Citation

Sonntag, Wolfgang. Fridtjof Nansen. Weimar: Kiepenheuer, 1958.

MLA (8th ed.) Citation

Sonntag, Wolfgang. Fridtjof Nansen. Kiepenheuer, 1958.

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