Dyfyniad APA

McConnell,Campbell R, & Gupta,Horish C. (1974). Economics: Principles, problems and policies (13th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

McConnell,Campbell R, and Gupta,Horish C. Economics: Principles, Problems and Policies. 13th ed. New Delhi: McGraw-Hill, 1974.

Dyfyniad MLA

McConnell,Campbell R, and Gupta,Horish C. Economics: Principles, Problems and Policies. 13th ed. McGraw-Hill, 1974.

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