000 00436nam a2200145Ia 4500
008 100324s9999 xx 000 0 und d
100 _aHelpman E
245 _aMonopolistic competition in trade theory
260 _c1990
_bPrinceton University
300 _bSee PRI 332.042 GRO (Includes Acc. Nos. 8014, 12062 & 14372)
_a44 p.
366 _b1990
650 _aTRADE
942 _cBK
999 _c72937
_d72937