00861cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040004100111042001200152050001900164082001200183110010200195245002900297260011400326300005300440504006100493650002400554650002400578999001700602e  41000071 DLC20260227111230.0830203m19401941dcuac    b    000 0 eng c  ae  41000071   a(OCoLC)9185916  aU.S. Off. of educ.cKWiUdOCoLCdDLC  apremarc00aLB1044.5b.N38  a371.3332 aNational Education Association of the United States.bDepartment of Elementary School Principals.10aRadio and the classroom.  aWashington, D.C.,bThe Dept. of elementary school principals of the National education association,c1940-41.  a3 p. leaf, 9-97 p.billus. (incl. port.)c23 cm.  a"Selected bibliography on radio in education": p. 95-97. 0aRadio in education. 0aRadio broadcasting.  c21802d21802