Prentwitz, Walter <br/><br/>
Join Geometries:  A Theory of Convex Sets and Linear Geometry 
/ by Walter Prentwitz and James Jantosciak 
 - New York,   Springer-Verlag  1979 
 - 534p. 
<br/><br/><label>ISBN: </label>0-387-90340-2 
<br/><br/><label>Dewey Class. No.: </label>516  / PRE/J