Boyd , Paul P. . <br/><br/>
A Brief Course in Analytical Geometry /  Textual Documents 
Paul P.Boyd & Harold H.Downing. 
 - 1st ed. / 
 - London :  D. Van Nostrand Co., Inc ,  C1947. 
 - iv,180p. ;  22cm. 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Geometry Analytical Geometry G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>516  / B 692 B