Validity issues in evaluative research /
edited by Ilene N. Bernstein.
- Beverly Hills, Calif. : Sage Publications, 1976, c1975.
- 134 p. : graphs ; 22 cm.
- Sage contemporary social science issues ; 23 .
"Originally appeared as a special issue of Sociological methods & research (volume 4, number 1, August 1975)."
Includes bibliographies.
0803905815
75032373
Evaluation research (Social action programs)
H62 / .V27 1976
001.4
"Originally appeared as a special issue of Sociological methods & research (volume 4, number 1, August 1975)."
Includes bibliographies.
0803905815
75032373
Evaluation research (Social action programs)
H62 / .V27 1976
001.4