Gaya APA

McConnell, C, R., Brue, S, L. (2002). Economics : Principles, Problems, and Polices (15). USA: McGraw-Hill.

Gaya MLA

McConnell, Campbell, R.., Brue, Stanley, L.. "Economics : Principles, Problems, and Polices". 15 USA: McGraw-Hill, 2002. Text.