Information Journal Paper
APA:
CopyHELPMAN, E.. (1987). IMPERFECT COMPETITION AND INTERNATIONAL TRADE: EVIDENCE FROM FOURTEEN INDUSTRIAL COUNTRIES. JOURNAL OF THE JAPANESE AND INTERNATIONAL ECONOMIES, 1(1), 62-81. SID. https://sid.ir/paper/573611/en
Vancouver:
CopyHELPMAN E.. IMPERFECT COMPETITION AND INTERNATIONAL TRADE: EVIDENCE FROM FOURTEEN INDUSTRIAL COUNTRIES. JOURNAL OF THE JAPANESE AND INTERNATIONAL ECONOMIES[Internet]. 1987;1(1):62-81. Available from: https://sid.ir/paper/573611/en
IEEE:
CopyE. HELPMAN, “IMPERFECT COMPETITION AND INTERNATIONAL TRADE: EVIDENCE FROM FOURTEEN INDUSTRIAL COUNTRIES,” JOURNAL OF THE JAPANESE AND INTERNATIONAL ECONOMIES, vol. 1, no. 1, pp. 62–81, 1987, [Online]. Available: https://sid.ir/paper/573611/en