Busemann, Herbert,  1905- <br/><br/>
Projectives geometry and projective metrics 
by Herbert Busemann and Paul J. Kelly 
 - New York  Academic Press  1953 
 - 332 p. : ill. ; 24 cm. 
 - Pure and applied mathematics  v.3 .
<br/><br/>Bibliography: p.323 
<br/><br/><label>LCCN: </label>52-13363 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Projective