Original IBM Personal Computer BASIC 3.0 documentation set from 1984. Includes a 3-ring binder (approximately 9" x 8" x 2") with hardback slipcase containing the BASIC Reference, Third Edition, 1984. Also included, as separate loose items not attached to the binder, are the BASIC Handbook - General Programming Information, 3rd Edition, 1984 (softbound, part number 6361129) and the BASIC Quick Reference, First Edition, May 1984. The set is in excellent condition: no writing, stamps, or names found in any of the books, no missing or torn pages, and the binder's 3-ring mechanism opens and closes without damage. The only noted flaw is a small blemish on the edge of the BASIC Handbook. This is a used vintage set, not new.