Where can you get a Repair manual for international 1600 loadstar?

Hi I was trying to find the same thing for my dad for Christmas and found a 3 volume set. It is this website: International Truck, Pickup, and Travelall Manual Reprints at http://www.binderbooks.com/inttruckbks.htm If you scroll toward the bottom there is a section for Meduim & Heavy Duty Service Manuals Late 1950's to 1980. It is a little high in price.