APA (7th ed.) Citation

Wells, H., & Vosburgh, L. (1957). Barnum, showman of America. David Mckay.

Chicago Style (17th ed.) Citation

Wells, Helen, and Leonard Vosburgh. Barnum, Showman of America. New York: David Mckay, 1957.

MLA (9th ed.) Citation

Wells, Helen, and Leonard Vosburgh. Barnum, Showman of America. David Mckay, 1957.

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