APA (7th ed.) Citation

Ray C. Fair, Karl E. Case, & Sharon M. Oster. Principles of macroeconomics (13th ed.).

Chicago Style (17th ed.) Citation

Ray C. Fair, Karl E. Case, and Sharon M. Oster. Principles of Macroeconomics. 13th ed.

MLA (8th ed.) Citation

Ray C. Fair, et al. Principles of Macroeconomics. 13th ed.