APA (7th ed.) Citation

Henson, M. A., Peary, R. E., & Washington, B. T. (1912). A Negro explorer at the North Pole. Frederick A. Stokes.

Chicago Style (17th ed.) Citation

Henson, Matthew Alexander, Robert E. Peary, and Booker T. Washington. A Negro Explorer at the North Pole. New York: Frederick A. Stokes, 1912.

MLA (9th ed.) Citation

Henson, Matthew Alexander, et al. A Negro Explorer at the North Pole. Frederick A. Stokes, 1912.