Não informado. (1951). Exceptional Children. Council for Exceptional Children.
Chicagoスタイル(17版)引用形式Não informado. Exceptional Children. Washington: Council for Exceptional Children, 1951.
MLA(8版)引用形式Não informado. Exceptional Children. Council for Exceptional Children, 1951.
警告: この引用は必ずしも正確ではありません.