000 00320nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a510
_bDAS
100 _aDass,H.K.
245 0 _aPolytechnic mathematics for diploma level engineering courses
260 _adelhi
_bS.Chand & Co.
_c1992
300 _a496
942 _2ddc
999 _c33837
_d33837