00740cam a22002171 4500 hew62000031 DLC 20260227111511.0 800312s1961 dcua 000 0 engxc hew62000031 (OCoLC)6073424 U. S. Dept. of Health, Education and Welfare. Library TxEU OCoLC DLC RJ501.A2 A53 United States. Children's Bureau. Health services for mentally retarded children, a progress report, 1956-1960. Washington, 1961. 34 p. tables. 26 cm. Bibliography : p. 32-34. Bibliographical footnotes. Children with mental disabilities United States. Child care. 34348 34348