APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.