000 00329nam a22001217a 4500
005 20251108175830.0
008 250721s9999 xx 000 0 eng d
100 1 _aSCHWARTZ, MISCHA
245 1 0 _aCOMMUNICATION SYSTEMS And techniques /
264 1 _aNEW YORK :
_bMcGRAW-HILL BOOK COMPANY,
942 _2ddc
_cBK
999 _c143489
_d143489