Pareigis, Bodo. <br/><br/>
Categories and functors   
by Bodo Pareigis 
 - New York  Academic Press  1970 
 - viii, 268p. 
 - Pure and Applied Mathematics  V.39 .
<br/><br/><label>LCCN: </label>76-117631 
<br/><br/><label>Dewey Class. No.: </label>512.55  / N70