Worten, B. R., & Sanders, J. R. (1987). Educational evaluation: Alternative approaches and practical guidelines. Longman.
Chicago-čujuhus (17. p.)Worten, Blaine R., juo James R. Sanders. Educational Evaluation: Alternative Approaches and Practical Guidelines. New York: Longman, 1987.
MLA-čujuhus (9. p.)Worten, Blaine R., juo James R. Sanders. Educational Evaluation: Alternative Approaches and Practical Guidelines. Longman, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.