00418nam a2200133Ia 4500008004100000082001500041100001900056245004800075260003800123300001200161942000700173952008900180999001500269190709s9999    xx            000 0 und d  a370.78 B61  aBarnes, John B 0aEducational research for classroom teachers  aNew YorkbG P Putnam's Sonsc1960  axvi,229  cBK  00104070aRIEBPLbRIEBPLd2019-07-09l0o370.78 B61p7869r2019-07-09 00:00:00yBK  c2790d2790