Lerner, J. W., Lowenthal, B., & Egan, R. (1998). Preschool children with special needs: Children at-risk, children with disabilities. Boston: Allyn and Bacon.
Dyfyniad Arddull ChicagoLerner, Janet W., Barbara Lowenthal, và Rosemary Egan. Preschool Children With Special Needs: Children At-risk, Children With Disabilities. Boston: Allyn and Bacon, 1998.
Dyfyniad MLALerner, Janet W., Barbara Lowenthal, và Rosemary Egan. Preschool Children With Special Needs: Children At-risk, Children With Disabilities. Boston: Allyn and Bacon, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.