Bell, Robert J.T <br/><br/>
An elementry treatise on coordinate geometry of three diemension 
Robert J.T.Bell 
 - 3rd.  ed. 
 - London   Macmillan  1944[reprinted 1972] 
 - xviii,377p.;  21cm 
<br/><br/><label>Dewey Class. No.: </label>516.16  / BEL