Reynolds, L. G., & Michas, N. A. [. b. (1971). Programmed Learning Aid for Principles of Economics: Macro. Illinois: Learning Systems Company.
استشهاد بنمط شيكاغوReynolds, Lloyd G., و Nicholas A. [Assisted by] Michas. Programmed Learning Aid for Principles of Economics: Macro. Illinois: Learning Systems Company, 1971.
MLA استشهادReynolds, Lloyd G., و Nicholas A. [Assisted by] Michas. Programmed Learning Aid for Principles of Economics: Macro. Illinois: Learning Systems Company, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.