00926cam a22002531a 4500001001300000003000400013005001700017008004100034010001700075035002000092040001900112043001200131050002600143051001500169100003000184245011300214260007200327300003100399490009200430650004300522650002300565830006700588999001700655e  30000162 DLC20260227111220.0870708s1930    dcua         f000 0 eng    ae  30000162   a(OCoLC)16143922  aDLCcMnHidDLC  an-us---00aL111b.A6 1930, no. 7  aLA230b.H41 aHeck, Arch Oliver,d1887-10aSpecial schools and classes in cities of 10,000 population and more in the United States /cby Arch O. Heck.  aWashington :bU.S. G.P.O. :bFor sale by the Supt. of Docs.,c1930.  av, 33 p. :bill. ;c23 cm.1 aBulletin / United States Department of the Interior, Office of Education ;v1930, no. 7 0aChildren with disabilitiesxEducation. 0aSpecial education. 0aBulletin (United States.  Office of Education) ;v1930, no. 7.  c21030d21030