Gaya APA

Brue, C, R, M, ;, S, L. (1990). Microeconomics: principles, problems, and policies . USA: Mc Graw Hill.

Gaya MLA

Brue, Campbell, R., McConnell, ;, Stanley, L.. "Microeconomics: principles, problems, and policies". USA: Mc Graw Hill, 1990. Text.