Rossi, Peter H. 1921-2006. Evaluation : a systematic approach / Peter H. Rossi, Howard E. Freeman. - 5th ed. - Newbury Park, Calif. : Sage Publications, c1993. - xii, 488 p. ; 24 cm. Includes bibliographical references (p. 456-474) and indexes. ISBN: 0803944586 LCCN: 92037082 Subjects--Topical Terms: Evaluation research (Social action programs) LC Class. No.: H62 / .R666 1993 Dewey Class. No.: 361.61072 / ROE 1993