Dyfyniad APA

Council for Exceptional Children. Division on Mental Retardation and Developmental Disabilities. (1994). Education and training in mental retardation and developmental disabilities. Council for Exceptional Children, Division on Mental Retardation and Developmental Disabilities.

Dyfyniad Arddull Chicago

Council for Exceptional Children. Division on Mental Retardation and Developmental Disabilities. Education and Training in Mental Retardation and Developmental Disabilities. Reston, VA: Council for Exceptional Children, Division on Mental Retardation and Developmental Disabilities, 1994.

Dyfyniad MLA

Council for Exceptional Children. Division on Mental Retardation and Developmental Disabilities. Education and Training in Mental Retardation and Developmental Disabilities. Council for Exceptional Children, Division on Mental Retardation and Developmental Disabilities, 1994.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.