The Supermen: The Story of Seymour Cray and the Technical Wizards Behind the Supercomputer Charles J. Murray ISBN: 978-0-471-04885-5 Hardcover 232 pages January 1997 US $35.00 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.