Dubinsky, Ed <br/><br/>
Lecture Notes in Mathematics 
/by Ed Dubinsky 
 - New York:  Springer-Verlag;  1979. 
 - 187p. 
<br/><br/><label>ISBN: </label>3-540-09504-7 
<br/><br/><label>Dewey Class. No.: </label>512.55  / DUB/L