TY  - BOOK
AU  - Dror,Yehezkel
TI  - Ventures in policy sciences: Concepts and applications 
T2  - Policy sciences book series
SN  - 0444001069
U1  - 300.1 
PY  - 1971///
CY  - New York
PB  - American Elsevier
KW  - Policy sciences
ER  -