Gaya APA

Brue, S, L., McConnell, C, R. (2002). Economics: principles, problem, and policies (15). New York: McGraw-Hill Irwin.

Gaya MLA

Brue, Stanley, L.., McConnell, Campbell, R.. "Economics: principles, problem, and policies". 15 New York: McGraw-Hill Irwin, 2002. Text.