000 00532nam a22001937a 4500
003 BD-DhUL
005 20150115100052.0
008 150115s1974 ii a|||| |||| 001 0 eng d
040 _aBD-DhUL
_cBD-DhUL
082 _a621.382
_bDAL
100 1 _aDas, P. N.
245 1 0 _aLine telegraphy /
_cP. N. Das.
250 _a3rd ed.
260 _aCalcutta :
_bModern Book Agency,
_cc1974.
300 _axvi, 203 p. :
_bill. ;
_c22 cm.
504 _aIncludes bibliographical references and index.
650 o _atelegraph.
942 _2ddc
_cBK
999 _c31360
_d31360