RT Book
T1 Evaluator interventions: pros and cons
T2 Sage research progress series in evaluation
JF Sage research progress series in evaluation
A2 Perloff, Robert
LA English
PP Beverly Hills u.a.
PB Sage Publ.
YR 1979
UL https://krimdok.uni-tuebingen.de/Record/311180957
NO Includes bibliographies
CN H62
SN 0803911963
SN 0803911971
K1 Evaluation research (Social action programs)
K1 Evaluationsforschung