Gaya APA

Coppock, L., Mateer, D. (2014). Principles of Macroeconomics (Ed 1 Cet 1). New York: W.W Norton & Company.

Gaya MLA

Coppock, Lee., Mateer, Dirk. "Principles of Macroeconomics". Ed 1 Cet 1 New York: W.W Norton & Company, 2014. Text.