00446nam a2200145 a 450000500170000000800410001704100080005808200080006610000230007424500920009725000120018926400490020130000340025065000160028420260717091040.0260717s1950    ii            000 0 eng d  aeng04a5161 aBell, Robert J. T.13aAn elementary treatise on coordinate geometry of three dimensions /cBell, Robert J. T.  a3rd ed. 1aLondon :bMacmillan Publishers,c1950, 1972.  axviii, 377 p. : ill. ; 22 cm. 4aMathematics