Roy,P N. (2019). International Trade: Theory and Practice (second.). New Age International Publishers.
Citazione stile Chigago Style (17a edizione)Roy,P N. International Trade: Theory and Practice. second. New Delhi: New Age International Publishers, 2019.
Citatione MLA (9a ed.)Roy,P N. International Trade: Theory and Practice. second. New Age International Publishers, 2019.