Dyfyniad APA
Samuelson, P. A., Nordhaus, W. D., & Mandel, M. J. (1995). Microeconomics (15th ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Samuelson, Paul A., William D. Nordhaus, and Michael J. Mandel. Microeconomics. 15th ed. New York: McGraw-Hill, 1995.
Dyfyniad MLA
Samuelson, Paul A., et al. Microeconomics. 15th ed. McGraw-Hill, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.