000 00286nam a2200109Ia 4500
100 _aGerlach, Vernon S & Ely, Donald P
942 _cBK
245 _aTeaching and media
_bA systematic approach
260 _aPrentice-Hall, New Jersey
_c1971
082 _a371.33 Ger/Ely
300 _axiii,392
999 _c11041
_d11041