TY  - BOOK
AU  - Clark Norman
AU  -  Juma Calestous
TI  - Long-run economics:  Evolutionary approach to economic growth   
SN  - 0861879031
U1  - X0gF, M7 
PY  - 1987///
CY  - London
PB  - Pinter          
KW  - Economics IRT Technology
N1  - Bibliography: P191-98
ER  -