Gaya APA

McConnell, C, R., Brue, S, L. (2005). Economics : principles, problems, and policies (6th ed.). New York: McGraw-Hill Irwin.

Gaya MLA

McConnell, Campbell, R.., Brue, Stanley, L.. "Economics : principles, problems, and policies". 6th ed. New York: McGraw-Hill Irwin, 2005. Text.