Não informado. (1977). Exceptional Child Education Resources. Council for Exceptional Children.
Cita Chicago Style (17a ed.)Não informado. Exceptional Child Education Resources. Reston, Va: Council for Exceptional Children, 1977.
Cita MLA (8a ed.)Não informado. Exceptional Child Education Resources. Council for Exceptional Children, 1977.
Precaución: Estas citas no son 100% exactas.