TY  - BOOK
AU  - Putt,Allen D.
AU  - Springer,J.Fred
TI  - Policy research: concepts, methods, and applications 
SN  - 0136840515
PY  - 1989///
CY  - Englewood Cliffs, N.J.
PB  - Prentice Hall
KW  - Political science
KW  - Public administration
KW  - Policy sciences
ER  -