1.
Category Theory and Computer Science
by Pitt, D. H., Poigne, D., Ry...
ISBN: 9780387185088
List Price: $39.95
2.
Category Theory and Computer Programming Tutorial and Workshop, Guildford, U.K., September 1...
by Abramsky, S., Pitt, D. H., ...
ISBN: 9780387171623
List Price: $38.00