Lawvere, F. W <br/><br/>
Conceptual mathematics : a first introduction to categories 
F. William Lawvere, Stephen H. Schanuel 
 - 2nd ed 
 - Cambridge  Cambridge University Press  2009 
 - xii, 390 p. : ill. ; 26 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780521894852 
<br/><br/><label>ISSN: </label>2007043671 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Categories (Mathematics)
<br/><br/><label>Dewey Class. No.: </label>5162 LAW