Dyfyniad APA

McConnell, C. R. (2012). Economics: Principles, problems, and policies. New York: McGraw Hill.

Dyfyniad Arddull Chicago

McConnell, Campbell R. Economics: Principles, Problems, and Policies. New York: McGraw Hill, 2012.

Dyfyniad MLA

McConnell, Campbell R. Economics: Principles, Problems, and Policies. New York: McGraw Hill, 2012.

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