00452nam a2200145Ia 4500008004100000082001500041100001900056245006200075250000800137260004200145300000800187942000700195952008900202999001500291190709s9999    xx            000 0 und d  a371(1) R5P  aRisk, Thomas M 0aPrinciples and practices of teaching in secondary schools  a3rd  aNew YorkbAmerican Book Companyc1958  a526  cBK  00104070aRIEBPLbRIEBPLd2019-07-09l0o371(1) R5Pp2972r2019-07-09 00:00:00yBK  c1154d1154