APA استشهاد

Sawyer, C. W., & Sprinkle, R. L. (2009). International economics (ed.3.). PHI learning pvt.Ltd.

استشهاد بنمط شيكاغو

Sawyer, Charles W., و Richard L. Sprinkle. International Economics. ed.3. New Delhi: PHI learning pvt.Ltd, 2009.

MLA استشهاد

Sawyer, Charles W., و Richard L. Sprinkle. International Economics. ed.3. PHI learning pvt.Ltd, 2009.