000 00279nam a2200121Ia 4500
005 20260205042246.0
008 260111s9999||||xx |||||||||||||| ||und||
100 _aBISWAS N N
245 0 _aPRINCIPLES OF TELEGRAPHY
260 _aBOMBAY
_bASIA
_c1964
300 _a185
942 _cBK
999 _c30247
_d30247