Understanding Cognition Peter Hampson, Peter Morris ISBN: 978-0-631-15749-6 Hardcover 420 pages January 1996, Wiley-Blackwell US $134.95 Add to Cart This price is valid for United States. Change location to view local pricing and availability. This is a Print-on-Demand title. It will be printed specifically to fill your order. Please allow an additional 5-6 days delivery time. The book is not returnable.