APA استشهاد

Chattopathyaya D.P. (1976). Foreign trade bullettin. Indian institute of foreign trade.

استشهاد بنمط شيكاغو

Chattopathyaya D.P. Foreign Trade Bullettin. New delhi: Indian institute of foreign trade, 1976.

MLA استشهاد

Chattopathyaya D.P. Foreign Trade Bullettin. Indian institute of foreign trade, 1976.