Posavac, Emil J. Program evaluation : Methods & case studies - 3rd ed - Englewood Cliffs, N.J. Appleton-Century-Crofts 1989 - 351 p. 24 cm 002132 S 046 ISBN: 013730367X Subjects--Topical Terms: Evaluation research (Social action programs)--United States Dewey Class. No.: 361.61072 / P964