000 003230000a22001330004500
080 _a516.5
_bB4
100 _aBell, R.J.T.
245 _aAn Elementary treatise on co-ordinate geometry of three dimensions
250 _a3rd ed.
260 _aLondon
_bMacmillan
_c1944
300 _a377p.
650 _aGEOMETRY
942 _cBK
999 _c53319
_d53319