Gaya APA

Case, Karl E, Fair, Ray C, Oster, Sharon M. (2014). Principles of macroeconomics . USA: Pearson Education International.

Gaya Chicago

Case, Karl E, Fair, Ray C, Oster, Sharon M. Principles of macroeconomics. USA: Pearson Education International, 2014. Text.

Gaya MLA

Case, Karl E, Fair, Ray C, Oster, Sharon M. Principles of macroeconomics. USA: Pearson Education International, 2014. Text.

Gaya Turabian

Case, Karl E, Fair, Ray C, Oster, Sharon M. Principles of macroeconomics. USA: Pearson Education International, 2014. Print.