APA引文

Robertson, D. (1972). Internationa trade policy (1st.). Sultan Chand & Co.

Chicago Style (17th ed.) Citation

Robertson, David. Internationa Trade Policy. 1st. Delhi: Sultan Chand & Co, 1972.

MLA引文

Robertson, David. Internationa Trade Policy. 1st. Sultan Chand & Co, 1972.

警告：這些引文格式不一定是100％准確.