Gaya APA

McConnell, C, R., Brue, S, L. (1990). Economics : Principles, Problems, And Policies (7). New York: McGraw-Hill.

Gaya MLA

McConnell, Campbell, R.., Brue, Stanley, L.. "Economics : Principles, Problems, And Policies". 7 New York: McGraw-Hill, 1990. Text.