APA (7th ed.) Citation

Barnum, P. T. (1886). The humbugs of the world. John Camden Hotten.

Chicago Style (17th ed.) Citation

Barnum, P. T. The Humbugs of the World. London: John Camden Hotten, 1886.

MLA (9th ed.) Citation

Barnum, P. T. The Humbugs of the World. John Camden Hotten, 1886.

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