Roy,P N. (2019). International Trade: Theory and Practice (second.). New Age International Publishers.
Чикаго стиль цитування (17-те видання)Roy,P N. International Trade: Theory and Practice. second. New Delhi: New Age International Publishers, 2019.
Стиль цитування MLA (9-ме видання)Roy,P N. International Trade: Theory and Practice. second. New Age International Publishers, 2019.