TY  - BOOK
AU  - Helpman Elhanan
AU  -  Krugman Paul R
TI  - Market structure and foreign trade:  Increasing returns, imperfect competition, and the international economy   
SN  - 0262081504
U1  - X:54, M5/TD3 
PY  - 1985///
CY  - Sussex
PB  - Wheatsheaf Books         
KW  - Export
ER  -