01006cam a22002771 4500001001300000003000400013005001700017008004100034010001700075035001900092040002500111042001200136050002600148051001800174082001200192100003100204245011700235260004800352300002800400490005400428500014900482504003200631650002400663650002400687999001700711e 33001190 DLC20260227111224.0760419s1933 xx 000 0 eng  ae 33001190  a(OCoLC)2124660 aDLCcOTUdOCoLCdDLC apremarc00aL111b.A6 1933, no. 4 aLB1044.5b.K6 a371.3331 aKoon, Cline Morgan,d1894-14aThe art of teaching by radio,cby Cline M. Koon, senior specialist in education by radio, Office of education... aWashington,bU.S. Govt. print. off.,c1933. avii, 91, [1] p.c23 cm.0 aU. S. Office of education. Bulletin, 1933,vno. 4 aAt head of title: United States Department of the interior. Harold L. Ickes, secretary. Office of education. William John Cooper, commissioner. aBibliography: p. 85-91, [1] 0aRadio in education. 0aRadio broadcasting. c21331d21331