TY  - BOOK
AU  - DeDregori,Thomas R
TI  - Theory of technology: : Continuity and change in human development 
SN  - 8185336121
U1  - 338.06 
PY  - 1989///
CY  - New Delhi
PB  - Affiliated East West
KW  - Technology Policy
N1  - Includes bibliographical references and index
ER  -