APA引文

Gregory, P. R., & Ruffin, R. J. (1989). Basic macroeconomics. Forseman Company.

Chicago Edition Citation

Gregory, Paul R., and Roy J. Ruffin. Basic Macroeconomics. Scott: Forseman Company, 1989.

MLA引文

Gregory, Paul R., and Roy J. Ruffin. Basic Macroeconomics. Forseman Company, 1989.

警告：這些引文格式不一定是100％准確.