000 00351 a2200133 4500
080 _a371.335
_bM 478 A
245 1 _aAudio-visual aids to instruction
_cby H.C. McKown and A.B. Roberts
250 _a2nd edn.
260 _aNew York
_c1949
650 _aAudio Visual Aids
100 1 _aMcKown, H.C., Roberts, A.B.
_d
300 _a608 p.
901 _a59100
999 _c23441
_d23441