Callahan, C. M. (2004). Program evaluation in gifted education. Corwin Press.
Dyfyniad Arddull ChicagoCallahan, Carolyn M. Program Evaluation in Gifted Education. Thousand Oaks, Calif.: Corwin Press, 2004.
Dyfyniad MLACallahan, Carolyn M. Program Evaluation in Gifted Education. Corwin Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.