ENCYCLOPEDIC DICTIONARY of mathematics.4V. 

 - 2 
 - Cambridge  MIT Press        1987 
<br/><br/><label>Standard No.: </label>37577 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>Bk, M7.1-.4       RR