APA استشهاد

Chopra, H. S., Ernst, W., & Lall, K. B. (1984). The EEC in the global system.

استشهاد بنمط شيكاغو

Chopra, H S., Wolfgang Ernst, و K B. Lall. The EEC in the Global System. New Delhi, Allied publishers Pvt Ltd, 1984.

MLA استشهاد

Chopra, H S., et al. The EEC in the Global System. 1984.