TY  - BOOK
AU  - Dror, Yehezkel
TI  - Design for policy sciences: Yehezkel Dror
SN  - 0-444-00105-0.
U1  - 500 
PY  - 1971///
CY  - New York
PB  - American Elsevier
KW  - Science and state
ER  -