Indian Institute of Foreign Trade. (1975). Non - tariff barriers to international trade. I.I.F.T.
Chicago Style aipamenaIndian Institute of Foreign Trade. Non - Tariff Barriers to International Trade. I.I.F.T, 1975.
MLA aipamenaIndian Institute of Foreign Trade. Non - Tariff Barriers to International Trade. I.I.F.T, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.