TY  - BOOK
AU  - Helpman Elhanan
AU  -  Grossman Gene M
TI  - Innovation and growth in the global economy
SN  - 0262570971
U1  - X0gF, N1 
PY  - 1991///
CY  - Cambridge
PB  - MIT Press         
KW  - Economics irt Technology
N1  - Bibliography: P 343-50
ER  -