APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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