TY  - BOOK
AU  - Helpman, Alhanan
AU  - Krugman, Paul R.
TI  - Market structure and foreign trade: ; increasing returns, imperfect competition, and the international economy 
SN  - 026258087X
U1  - 338.522 
PY  - 1985///
CY  - Sussex
PB  - Wheatsheaf
N1  - "1991 reprint pub. by the MIT Pr."
ER  -