000 00299nam a2200121Ia 4500
008 220201s1993 xx 000 0 eng d
082 _a621.381
_bPAU
100 _aPaulson ed.
245 0 _aCpmplete communication H.P.
260 _aDelhi
_bJaico Publishing co.
_c1993
300 _a286
942 _2ddc
999 _c34718
_d34718