APA (7th ed.) Citation

Gregory, W. K. (1951). Evolution emerging: A survey of changing patterns from primeval life to man. Macmillan.

Chicago Style (17th ed.) Citation

Gregory, William King. Evolution Emerging: A Survey of Changing Patterns from Primeval Life to Man. New York: Macmillan, 1951.

MLA (9th ed.) Citation

Gregory, William King. Evolution Emerging: A Survey of Changing Patterns from Primeval Life to Man. Macmillan, 1951.

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