APA استشهاد

Gillis,Malcolm. (1987). Economics of development (2.). W W Norton & Company.

استشهاد بنمط شيكاغو

Gillis,Malcolm. Economics of Development. 2. New York: W W Norton & Company, 1987.

MLA استشهاد

Gillis,Malcolm. Economics of Development. 2. W W Norton & Company, 1987.