000 00259nam a2200109Ia 4500
008 160710s1980 xx 000 0 und d
100 _aSAXENA AND GUPTA
245 _aDIFFRENTIAL CALCULUS
260 _bR.CHAND AND CO.
_c1980
300 _a251
942 _2ddc
_cB
999 _c43886
_d43886