TY  - BOOK
AU  - THIRTLE Colin G
AU  -  RUTTAN Vernon W
AU  -  SCHERER F M Ed.
TI  - Role of demand and supply in the generation and diffusion of technical change
T2  - Fundamentals of pure and applied economics;21
SN  - 3718603845
U1  - XogF, M7/SC 
PY  - 1987///
CY  - London
PB  - Harwood Academic Publishers        
ER  -