APA (7th ed.) Citation

DeConde, A., Rappaport, A., & Steckel, W. R. (1970). Patterns in American history (2nd ed.). Wadsworth.

Chicago Style (17th ed.) Citation

DeConde, Alexander, Armin Rappaport, and William R. Steckel. Patterns in American History. 2nd ed. Belmont, Calif.: Wadsworth, 1970.

MLA (8th ed.) Citation

DeConde, Alexander, et al. Patterns in American History. 2nd ed. Wadsworth, 1970.