Παραπομπή σε μορφή APA (7η εκδ.)

(1981). Evaluation Risearch And Practice Comparative And International Perspectives Edited By Robert A. Levine...[et. Al]. Sage Publications.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Evaluation Risearch And Practice Comparative And International Perspectives Edited By Robert A. Levine...[et. Al]. Sage Publications, 1981.

Παραπομπή σε μορφή MLA (8th εκδ.)

Evaluation Risearch And Practice Comparative And International Perspectives Edited By Robert A. Levine...[et. Al]. Sage Publications, 1981.