APA (7e ed.) Bronvermelding

(1981). Topics in early childhood special education. Aspen Systems Corp..

Chicago (17e ed.) Bronvermelding

Topics in Early Childhood Special Education. Rockville, Md.: Aspen Systems Corp., 1981.

MLA (9e ed.) Bronvermelding

Topics in Early Childhood Special Education. Aspen Systems Corp., 1981.