APA استشهاد

Gill, R. (1980). Economic development: Past and present (3 edition.). Prentice-Hall of India Pvt. Ltd.

استشهاد بنمط شيكاغو

Gill, Richard. Economic Development: Past and Present. 3 edition. New Delhi: Prentice-Hall of India Pvt. Ltd, 1980.

MLA استشهاد

Gill, Richard. Economic Development: Past and Present. 3 edition. Prentice-Hall of India Pvt. Ltd, 1980.