000 00212 a2200097 4500
001 23469
100 _aWestcott, C G
245 _atape recorders: how they work
260 _a
_bsams
_c1968
090 _c15860
_d15860
942 _aNUST-CAE
_cM
_c6514
999 _c258542
_d258542