APA (7th ed.) Citation

Keating, B., Bjorklund, L. F., & Russell, C. M. (1972). Famous American explorers. Rand McNally.

Chicago Style (17th ed.) Citation

Keating, Bern, Lorence F. Bjorklund, and Charles M. Russell. Famous American Explorers. Chicago: Rand McNally, 1972.

MLA (8th ed.) Citation

Keating, Bern, et al. Famous American Explorers. Rand McNally, 1972.