Dyfyniad APA
Salvatore, D. (1995). Schaum's outline of theory and problems of principles of economics (2nd ed.). The McGraw-Hill Co..
Dyfyniad Arddull Chicago
Salvatore, Dominick. Schaum's Outline of Theory and Problems of Principles of Economics. 2nd ed. New York: The McGraw-Hill Co., 1995.
Dyfyniad MLA
Salvatore, Dominick. Schaum's Outline of Theory and Problems of Principles of Economics. 2nd ed. The McGraw-Hill Co., 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.