Reports of the Midwest category seminar III 
Ed. S. Mac Lane 
 - Berlin; Heidelberg; New York  Springer  1969 
 - 247 p  ill  25 cm 
 - Lecture notes in mathematics  106 .
<br/><br/> Cuprinde bibliografie pe capitole 
<br/><br/><label>LCCN: </label>7096694