APA (7th ed.) Citation

Ferrell, R. H., & Natkiel, R. (1987). Atlas of American history. Facts on File.

Chicago Style (17th ed.) Citation

Ferrell, Robert H., and Richard Natkiel. Atlas of American History. New York, NY: Facts on File, 1987.

MLA (9th ed.) Citation

Ferrell, Robert H., and Richard Natkiel. Atlas of American History. Facts on File, 1987.