Παραπομπή APA

Babu,Vithal V. (1991). Trade and Technology directory of India. Economy and Trade.

Παραπομπή Chicago Style

Babu,Vithal V. Trade and Technology Directory of India. New Delhi: Economy and Trade, 1991.

Παραπομπή MLA

Babu,Vithal V. Trade and Technology Directory of India. Economy and Trade, 1991.