APA استشهاد

Heijdra, B. J., & Ploeg, F. v. (2002). Foundations of modern macroeconomics (2.). OUP.

استشهاد بنمط شيكاغو

Heijdra, Ben J., و Federick van Ploeg. Foundations of Modern Macroeconomics. 2. Oxford: OUP, 2002.

MLA استشهاد

Heijdra, Ben J., و Federick van Ploeg. Foundations of Modern Macroeconomics. 2. OUP, 2002.