Special schools and classes in cities of 10,000 population and more in the United States /
Heck, Arch Oliver, 1887-
Special schools and classes in cities of 10,000 population and more in the United States / by Arch O. Heck. - Washington : U.S. G.P.O. : For sale by the Supt. of Docs., 1930. - v, 33 p. : ill. ; 23 cm. - Bulletin / United States Department of the Interior, Office of Education ; 1930, no. 7 . - Bulletin (United States. Office of Education) ; 1930, no. 7. .
e 30000162
Children with disabilities--Education.
Special education.
L111 / .A6 1930, no. 7
Special schools and classes in cities of 10,000 population and more in the United States / by Arch O. Heck. - Washington : U.S. G.P.O. : For sale by the Supt. of Docs., 1930. - v, 33 p. : ill. ; 23 cm. - Bulletin / United States Department of the Interior, Office of Education ; 1930, no. 7 . - Bulletin (United States. Office of Education) ; 1930, no. 7. .
e 30000162
Children with disabilities--Education.
Special education.
L111 / .A6 1930, no. 7