Phi Delta Kappa. Educational Foundation & Walling, D. R. (1994). Teachers as leaders: Perspectives on the professional development of teachers. Phi Delta Kappa Educational Foundation.
Dyfyniad Arddull ChicagoPhi Delta Kappa. Educational Foundation and Donovan R. Walling. Teachers as Leaders: Perspectives on the Professional Development of Teachers. Bloomington, Ind.: Phi Delta Kappa Educational Foundation, 1994.
Dyfyniad MLAPhi Delta Kappa. Educational Foundation and Donovan R. Walling. Teachers as Leaders: Perspectives on the Professional Development of Teachers. Phi Delta Kappa Educational Foundation, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.