Information Journal Paper
APA:
CopyPOLAK, J.J.. (1996). IS APEC A NATURAL REGIONAL TRADING BLOC? A CRITIQUE OF THE GRAVITY MODEL OF INTERNATIONAL TRADE. WORLD ECONOMY, 19(5), 533-543. SID. https://sid.ir/paper/652258/en
Vancouver:
CopyPOLAK J.J.. IS APEC A NATURAL REGIONAL TRADING BLOC? A CRITIQUE OF THE GRAVITY MODEL OF INTERNATIONAL TRADE. WORLD ECONOMY[Internet]. 1996;19(5):533-543. Available from: https://sid.ir/paper/652258/en
IEEE:
CopyJ.J. POLAK, “IS APEC A NATURAL REGIONAL TRADING BLOC? A CRITIQUE OF THE GRAVITY MODEL OF INTERNATIONAL TRADE,” WORLD ECONOMY, vol. 19, no. 5, pp. 533–543, 1996, [Online]. Available: https://sid.ir/paper/652258/en