000 00310nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.38175 R266
100 _aRAYER, Francis G.
245 0 _a50 PROJECTS USING RELAYS, SCRs TRIACS
260 _aLONDON
_bBABANI
_c1977
300 _a18X11
942 _cBK
_2DDC
999 _c18274
_d18274