000 00324nam a2200121Ia 4500
008 170101s1949 xx 000 0 und d
082 _a371.335 MAC
100 _aMc Know Harry C.
245 0 _aAudio-Visual Aids to Instruction
260 _aNew York
_bMcGraw-Hill Book Co. Inc.
_c1949
300 _a608 p.
942 _2ddc
_cB
999 _c240316
_d240316