APA (7th ed.) Citation

Nansen, F. (1924). Brief an [Karl Geigy-Hagenbach?]. [s.n.].

Chicago Style (17th ed.) Citation

Nansen, Fridtjof. Brief an [Karl Geigy-Hagenbach?]. [s.n.], 1924.

MLA (8th ed.) Citation

Nansen, Fridtjof. Brief an [Karl Geigy-Hagenbach?]. [s.n.], 1924.

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