Gaya APA

McConnell, C, R, , ;, , B, S, L. (2002). Economics : principles, problems, and policies, text only - 15th ed. . New York: McGraw-Hill.

Gaya MLA

McConnell, Campbell, R., , ;, , Brue,, Stanley, L.. "Economics : principles, problems, and policies, text only - 15th ed.". New York: McGraw-Hill, 2002. Text.