Weiss, Carol H. Evaluation research: methods for assessing program effectiveness [by] Carol H. Weiss. - Englewood Cliffs, N.J., Prentice-Hall [1972] - xii, 160 p. 23 cm. - Prentice-Hall methods of social science series . Bibliography: p. 129-154. ISBN: 0132921936 LCCN: 71179447 Subjects--Topical Terms: Evaluation research (Social action programs) LC Class. No.: H62 / .W3962 Dewey Class. No.: 300.72 / WEE 1972