Gaya APA

Yohe, G, W. (1992). Study guide to accompany Samuelson-Nordhaus : macroeconomics (Ed. 14). New York: McGraw Hill.

Gaya MLA

Yohe, Gary, W. "Study guide to accompany Samuelson-Nordhaus : macroeconomics". Ed. 14 New York: McGraw Hill, 1992. Text.