00332nam a2200109Ia 4500008004100000082001700041100002300058245007300081250000800154260003000162300003000192260825b        |||||||| |||| 00| 0 eng d  a516bB433.ET  aBell, Robert J. T.  aAn elementary treatise on coordinate geometry of three dimensionsb/  a3rd  aLondon:bMacmillan,c1959  axviii, 377p. Bibl. Index.