Validity issues in evaluative research / edited by Ilene N. Bernstein.

Bibliographic Details

Other Authors:	Nagel, Ilene H., 1946-
Language:	English
Published:	Beverly Hills, Calif. : Sage Publications, 1976, ©1975.
Series:	Sage contemporary social science issues ; 23
Subjects:	Evaluation research (Social action programs)
Physical Description:	134 pages : graphs ; 22 cm.
Other Uniform Title:	Sociological methods & research.
Format:	Book