000 00262nam a22001217a 4500
020 _a0-7131-3262-0
082 _a621.3822 CON'S
100 _aCONNOR, E. R
_978623
245 _aSIGNALS
260 _aLONDON
_bEDWARD ARNOLD
_c1972
300 _a110P
942 _cBK
999 _c583737
_d583737