000 00336nam a2200157Ia 4500
700 _aPacker
100 _aHaas
250 _a3rd ed
365 _b9.6
942 _cBK
654 _a
245 _aPreparation and use of audio-visual aids
260 _aEnglewood Cliffs
_bPrentice Hall
_c1962
082 _a371.33
300 _ax,381
999 _c414867
_d414867
041 _aeng