TY  - BOOK
AU  - Rosenberg Nathan Ed.
TI  - Economics of technological change:  Selected readings   
T2  - Penguin Modern Economic Readings Ed by B J McCormick
U1  - X0gF, L1/TD1;2/TD3 
PY  - 1971///
CY  - Harmondsworth
PB  - Penguin Books         
KW  - Economics IRT Technology
N1  - Bibliography: p 489-492
ER  -