000 00284nam a2200121Ia 4500
008 211209s1981 xx 000 0 und d
041 _aeng
082 _a516.23 N81 SHA
100 _aSHARMA P N J
245 _aSOLID GEOMETRY
260 _bNARAYANA PUBLICATIONS
_c1981
300 _a470
999 _c18537
_d18537