Dyfyniad APA

Sharp, A. M., Register, C. A., & Grimes, P. W. (2002). Economics of social issues (15th ed.). Boston: McGraw-Hill/Irwin.

Dyfyniad Arddull Chicago

Sharp, Ansel Miree, Charles A. Register, và Paul W. Grimes. Economics of Social Issues. 15th ed. Boston: McGraw-Hill/Irwin, 2002.

Dyfyniad MLA

Sharp, Ansel Miree, Charles A. Register, và Paul W. Grimes. Economics of Social Issues. 15th ed. Boston: McGraw-Hill/Irwin, 2002.

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