000 00293nam a2200121Ia 4500
008 160710s1974 xx 000 0 und d
082 _a621.389 LAT
100 _aLATHI, B.P.
245 _aSIGNALS SYSTEMS AND CONTROLS
260 _bINDIRECT EDUCATION
_c1974
300 _a524
942 _2ddc
_cB
999 _c37493
_d37493