Dyfyniad APA

Frank, R. H., Bernanke, B., & Johnston, L. (2013). Principles of macroeconomics (5th ed.). McGraw-Hill/Irwin.

Dyfyniad Arddull Chicago

Frank, Robert H., Ben Bernanke, and Louis Johnston. Principles of Macroeconomics. 5th ed. New York: McGraw-Hill/Irwin, 2013.

Dyfyniad MLA

Frank, Robert H., et al. Principles of Macroeconomics. 5th ed. McGraw-Hill/Irwin, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.