APA استشهاد

Indian Institute of foreign trade. (1973). Generalised system of preferences. I.I.F.T.

استشهاد بنمط شيكاغو

Indian Institute of foreign trade. Generalised System of Preferences. New Delhi: I.I.F.T, 1973.

MLA استشهاد

Indian Institute of foreign trade. Generalised System of Preferences. I.I.F.T, 1973.