APA (7th ed.) Citation
Gregory, P. R., & Ruffin, R. J. Basic macroeconomics (1.ed.). HarperCollins Publishers Ltd.
Chicago Style (17th ed.) Citation
Gregory, Paul R., and Roy J. Ruffin. Basic Macroeconomics. 1.ed. B.m.: HarperCollins Publishers Ltd.
MLA (9th ed.) Citation
Gregory, Paul R., and Roy J. Ruffin. Basic Macroeconomics. 1.ed. HarperCollins Publishers Ltd.
Warning: These citations may not always be 100% accurate.