(1979). Evaluation in education. Pergamon.
Chicago-čujuhus (17. p.)Evaluation in Education. Oxford ; New York: Pergamon, 1979.
MLA-čujuhus (9. p.)Evaluation in Education. Pergamon, 1979.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.