000 00348nam a2200133Ia 4500
008 220201s1991 xx 000 0 eng d
041 _aENG
100 _aI.S: 5390-1984
245 0 _aTELEGRAPHY: TEXT BOOK OF ENGINEERING STUDENTS
250 _a2ND
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1991
300 _a104
942 _2ddc
999 _c57594
_d57594