APA استشهاد

Paul A Samuelson & William D Nordhaus. (2010). Macroeconomics (19th ed.). Mc-GrawHill Education.

استشهاد بنمط شيكاغو

Paul A Samuelson و William D Nordhaus. Macroeconomics. 19th ed. NewDelhi: Mc-GrawHill Education, 2010.

MLA استشهاد

Paul A Samuelson و William D Nordhaus. Macroeconomics. 19th ed. Mc-GrawHill Education, 2010.