APA (7th ed.) Citation

Chamberlin, W. H. (1941). The world's iron age. Macmillan.

Chicago Style (17th ed.) Citation

Chamberlin, William Henry. The World's Iron Age. New York: Macmillan, 1941.

MLA (9th ed.) Citation

Chamberlin, William Henry. The World's Iron Age. Macmillan, 1941.

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