APA (7th ed.) Citation

Ludwig, E. (1937). The Nile: The life-story of a river. Viking Press.

Chicago Style (17th ed.) Citation

Ludwig, Emil. The Nile: The Life-story of a River. New York: Viking Press, 1937.

MLA (9th ed.) Citation

Ludwig, Emil. The Nile: The Life-story of a River. Viking Press, 1937.

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