Boone, L. E., & Kurtz, D. L. (1979). Contemporary business (2nd ed.). The Dryden Press.

Boone, Louis E., and David L. Kurtz. Contemporary Business. 2nd ed. Hinsdale: The Dryden Press, 1979.

Boone, Louis E., and David L. Kurtz. Contemporary Business. 2nd ed. The Dryden Press, 1979.