APA (7e ed.) Bronvermelding

Não informado. (2009). Intellectual and Developmental Disabilities. American Association on Intellectual and Developmental Disabilities.

Chicago (17e ed.) Bronvermelding

Não informado. Intellectual and Developmental Disabilities. Washington: American Association on Intellectual and Developmental Disabilities, 2009.

MLA (8e ed.) Bronvermelding

Não informado. Intellectual and Developmental Disabilities. American Association on Intellectual and Developmental Disabilities, 2009.

Let op: Deze citaties zijn niet altijd 100% accuraat.