APA (7th ed.) Citation

Ludwig, E., & Lindsay, M. H. (1937). The Nile: The life-story of a river. The Viking press.

Chicago Style (17th ed.) Citation

Ludwig, Emil, and Mary H. Lindsay. The Nile: The Life-story of a River. New York: The Viking press, 1937.

MLA (9th ed.) Citation

Ludwig, Emil, and Mary H. Lindsay. The Nile: The Life-story of a River. The Viking press, 1937.