Green, J.A.  x <br/><br/>
Sets and groups  x 

 - x 
 - Lond.  E.L.B.S.  1965 
 - ix, 74 
<br/><br/>x 
<br/><br/><label>ISBN: </label>x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus Calculus 
<br/><br/><label>Dewey Class. No.: </label>517.521/GRS