APA引文

Heller,H Robert. International trade: Theory and empirical evidence (2.). Prentice Hall of India.

Chicago Edition Citation

Heller,H Robert. International Trade: Theory and Empirical Evidence. 2. New Delhi: Prentice Hall of India.

MLA引文

Heller,H Robert. International Trade: Theory and Empirical Evidence. 2. Prentice Hall of India.

警告：這些引文格式不一定是100％准確.