This is a vintage Commodore 64 Programmer's Reference Guide Manual from the first edition in 1982. It contains valuable information for those interested in computing history and is a must-have for any collector. It is in excellent condition and has been well-preserved over the years. This guide is specifically for Commodore enthusiasts who are looking to add to their collection or learn more about the early days of computing. Get your hands on this piece of history today and enjoy the incredible information it has to offer.