00823nam a2200253 a 4500 3743170 BD-DhUL 20170417143024.0 850919s1980 fr a b i000 0 eng 81194970 9231018728 (pbk.) DLC DLC DLC BD-DhUL e-hu--- 370 NAH Nagy, József, Dr. The Hungarian experience of OOK, an instrument for the development of educational technology / József Nagy. Paris : Unesco, 1980. 101, [1] p. : ill. ; 21 cm. Experiments and innovations in education ; no. 43 Bibliography: p. 101-[102] Educational technology Hungary. International Educational Reporting Service. ddc REF 182966 182966 0 0 ddc 0 370_000000000000000_NAH 0 REF 319112 DUL DUL UNC 2017-04-17 Gift 370 NAH D17102 2017-04-17 2017-04-17 REF