00377nam a2200133Ia 4500 20260716043935.0 09.05.08 C8135 Cornejo, Rafael Convergence in the rules of origin spaghetti bowl : a methodological proposal IDB-INTAL Buenos AiresAR 2007 [2], 28, [14] p. 4/22/09 JOYD M C8135 57261 57261