Birkhoff, George David,    1884-1944. <br/><br/>
Basic geometry. /    
by George David Birkhoff and Ralph Beatley. 
 - 3rd ed. 
 - New York :   Chelsea Pub. Co. ,   [1959] 
 - 294  p. :    illus.;    21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Plane.--------
<br/><br/><label>Dewey Class. No.: </label>513.1 BIR