Mac Lane, Saunders,  1909-2005 <br/><br/>
Categories for the working mathematician / 
S. Mac Lane. 
 - New York [etc.] :   Springer,   [1971]. 
<br/><br/><label>ISBN: </label> 0387900365  3540900365 
<br/><br/><label>Universal Decimal Class. No.: </label>51