TY  - BOOK
AU  - Cetron, Marvin J.
TI  - Technological forecasting: a practical approach 
AV  - T174 .C47
U1  - 600 
PY  - 1969///
CY  - New York
PB  - Technology Forecasting Institute
KW  - Technological forecasting
N1  - Includes Bibliographies and index
ER  -