APA (7th ed.) Citation

Wilhelm Prince of Sweden. (1926). Among pygmies and gorillas with the Swedish zoological expedition to Central Africa, 1921 (New ed.). Dutton.

Chicago Style (17th ed.) Citation

Wilhelm Prince of Sweden. Among Pygmies and Gorillas with the Swedish Zoological Expedition to Central Africa, 1921. New ed. New York: Dutton, 1926.

MLA (9th ed.) Citation

Wilhelm Prince of Sweden. Among Pygmies and Gorillas with the Swedish Zoological Expedition to Central Africa, 1921. New ed. Dutton, 1926.