APA (7th ed.) Zitazioa

(1981). Evaluation research and practice:comparative: And international perspectives. Sage.

Chicago Style (17th ed.) Zitazioa

Evaluation Research and Practice:comparative: And International Perspectives. Beverly Hills, Calif: Sage, 1981.

MLA (9th ed.) Zitazioa

Evaluation Research and Practice:comparative: And International Perspectives. Sage, 1981.