000 00643nam a2200229 4500
001 38688
003 (BD-RjUL)
005 20211209052836.0
008 710706s1970 nyua 000 0 eng
020 _a818527309X
035 _a(BD-RjUL)
040 _aDLC
_c(BD-RjUL)
_dDLC
082 0 0 _a621.385
_221
_bBIP 2001
100 1 _aBiswas, Nripendra N.,
_9119368
245 1 0 _aPrinciples of telephony
_cby N. N. Biswas.
260 _aIndia,
_bRadiant Books.
_cc1988 [2001reprint].
300 _avii, 138 p.
_billus.
_c24 cm.
500 _aInclude Index.
650 0 _aTelephone, Automatic.
_9119369
942 _2ddc
_cBK
999 _c38688
_d38688