TY  - BOOK
AU  - Datta,Lois-ellin
AU  - Perloff,Robert O.
TI  - Improving evaluations
T2  - Sage focus editions
SN  - 0803912404
AV  - H62 .I54
U1  - 309.1/73/0926 
PY  - 1979///
CY  - Beverly Hills, Calif.
PB  - Sage Publications
KW  - Evaluation research (Social action programs)
KW  - Congresses
KW  - Local
N1  - 920616; Includes bibliographies
ER  -