000 00306nam a2200121Ia 4500
999 _c15443
_d15443
008 190711s9999 xx 000 0 und d
082 _a621.385 D229
100 _aDas, P. N.
245 0 _aIntroduction to Manual Telephony
260 _aCALCUTTA
_bModern Book Agency
_c1973
300 _a22X14
942 _cBK