TY  - BOOK
AU  - Nachmias,David
TI  - Public policy evaluation: approaches and methods 
SN  - 0312655614
AV  - H62 .N19
U1  - 300.7'2 
PY  - 1979///
CY  - New York
PB  - St. Martin's Press
KW  - Evaluation research (Social action programs)
N1  - Includes index; Includes bibliographical references: p. 175-187
N2  - This book is concerned with both theory and methodology of public policy evaluation. It attempts to analyze and compare various conceptual models on which evaluations can be based and to explain the statistical techniques most useful in evaluation research
ER  -