TY  - BOOK
AU  - 700 10 Perloff, Robert  
ED  - 710 20 Evaluation Research Society 
TI  - Evaluator interventions: pros and cons 
SN  -   0803911963 
AV  - H62 .E87 1979
PY  - 1979///
CY  - Beverly Hills, Calif.
PB  - Sage Publications,|
KW  - 50  0 Evaluation research (Social action programs)
N1  - Includes bibliographical references;  "Published in cooperation with the Evaluation Research Society."
ER  -