Sanders, J. R. (1994). The program evaluation standards: How to assess evaluations of educational programs (2nd ed.). Sage Publications.
Lua i Stíl Chicago (17ú heag.)Sanders, James R. The Program Evaluation Standards: How to Assess Evaluations of Educational Programs. 2nd ed. California: Sage Publications, 1994.
Lua MLA (9ú heag.)Sanders, James R. The Program Evaluation Standards: How to Assess Evaluations of Educational Programs. 2nd ed. Sage Publications, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.