TY  - BOOK
AU  - Walker,Warren E
ED  - Research and Development Corporation, 
TI  - A review of models in the policy process
T2  - The Rand paper series
PY  - 1978///
CY  - Santa Monica, California
PB  - Rand Corporation
KW  - Policy sciences
KW  - Mathematical models
KW  - Economic policy
ER  -