APA (7th ed.) Citation
Johnsen, S. (1936). On the Variation of fishes in relation to environment: (Preliminary account.).
Chicago Style (17th ed.) Citation
Johnsen, Sigurd. On the Variation of Fishes in Relation to Environment: (Preliminary Account.). Bergen, 1936.
MLA (9th ed.) Citation
Johnsen, Sigurd. On the Variation of Fishes in Relation to Environment: (Preliminary Account.). 1936.
Warning: These citations may not always be 100% accurate.