000 00318nam a2200121Ia 4500
008 211209s1987 xx 000 0 und d
020 _a0071004742
041 _aeng
100 _aHELMS , HARRY L.
245 _aCONTEMPORARY ELECTRONICS CIRCUITS DESK BOOK
260 _aNEWYORK
_bMCGROW HILL
_c1987
300 _aVII + 253
999 _c98943
_d98943