Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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