Gaya APA

Case,Kare E, Fair,Ray C. (2013). Principles of Economics . Boston: Pearson.

Gaya Chicago

Case,Kare E, Fair,Ray C. Principles of Economics. Boston: Pearson, 2013. Teks.

Gaya MLA

Case,Kare E, Fair,Ray C. Principles of Economics. Boston: Pearson, 2013. Teks.

Gaya Turabian

Case,Kare E, Fair,Ray C. Principles of Economics. Boston: Pearson, 2013. Teks.