Freyd, Peter J. <br/><br/>
Categories, allegories / 
Peter J. Freyd, Andre Scedrov. 
 - Amsterdam :  North-Holland,  c1990. 
 - xvii, 296 p. :  ill. 
 - North-Holland mathematical library ;  v. 39 .
<br/><br/><label>ISBN: </label>0444703675 (pbk.) :  fl. 50.00 
<br/><br/><label>LCCN: </label>91065125     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Categories (Mathematics)<br/>Allegories (Mathematics)