APA استشهاد

Calvo & Waugh geoffrey. (1979). Micro economics: An introductory text. Tata McGraw Hill.

استشهاد بنمط شيكاغو

Calvo و Waugh geoffrey. Micro Economics: An Introductory Text. New Delhi: Tata McGraw Hill, 1979.

MLA استشهاد

Calvo و Waugh geoffrey. Micro Economics: An Introductory Text. Tata McGraw Hill, 1979.