Dunn, Lloyd M., Exceptional children in the schools. [electronic resource] / Contributing authors: Samuel C. Ashcroft [and others]. — New York, : Holt, Rinehart and Winston, [1963]. — 580 p. : illus. 22 cm. LCCN: 63010546 Nat. Bib. No.: GB63-12064 Subjects--Topical Terms: Special education.Orthopedagogiek.Éducation spĂ©ciale. LC Class. No.: LC3965 / .D8 Dewey Class. No.: 371.9