APA (7th ed.) Citation

Vandenplas, M., Diulio, E. A., & Salvatore, D. Schaum's interactive principles of economics.

Chicago Style (17th ed.) Citation

Vandenplas, Mark, Eugene A. Diulio, and Dominick Salvatore. Schaum's Interactive Principles of Economics.

MLA (8th ed.) Citation

Vandenplas, Mark, et al. Schaum's Interactive Principles of Economics.