Ryan, K. E. E., & Cousins, J. B. E. (2009). The Sage international handbook of educational evaluation. Sage Publications.
Chicago Stili AlıntıRyan, Katherine E Ed, ve J Bradley Ed Cousins. The Sage International Handbook of Educational Evaluation. California: Sage Publications, 2009.
MLA AlıntıRyan, Katherine E Ed, ve J Bradley Ed Cousins. The Sage International Handbook of Educational Evaluation. Sage Publications, 2009.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..