TY  - BOOK
AU  - 
ED  - Bozeman, Barry, Melkers, Julia
TI  - Evaluating R & D impacts: methods and practice
SN  - 0792393252
U1  - 658.57, 
PY  - 1993///
CY  - Boston
PB  - Kluwer Academic
N1  - sd
ER  -