00454nam a2200145Ia 4500008004100000082001500041100002500056245005000081250000800131260004500139300001300184942000700197952008900204999001500293190709s9999    xx            000 0 und d  a371.33 W7A  aWittich, Walter Arno 0aAudio visual materials : their nature and use  a3rd  aNew YorkbHapper & Brothers Publisc1962  axxvi,500  cBK  00104070aRIEBPLbRIEBPLd2019-07-09l0o371.33 W7Ap3160r2019-07-09 00:00:00yBK  c1214d1214