APA (7th ed.) Citation

Hobbs, W. H. (1922). Earth evolution and its facial expression. The Macmillan Company.

Chicago Style (17th ed.) Citation

Hobbs, William Herbert. Earth Evolution and Its Facial Expression. New York: The Macmillan Company, 1922.

MLA (9th ed.) Citation

Hobbs, William Herbert. Earth Evolution and Its Facial Expression. The Macmillan Company, 1922.

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