Dyfyniad APA

Roy, P. N. (1986). International trade: Theory and practice. Wiley castern.

Dyfyniad Arddull Chicago

Roy, P. N. International Trade: Theory and Practice. New Delhi: Wiley castern, 1986.

Dyfyniad MLA

Roy, P. N. International Trade: Theory and Practice. Wiley castern, 1986.

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