IBM Personal System PS/2 Quick Reference Guide P70 386 Model 30 286 Operations

IBM Personal System/2 Model 55SX Quick Reference and Reference Diskette

IBM Personal Computer Hardware Reference Library Guide To Operations 6025000 '81

ibm system / 2 and bios interface technical reference ( slipcase )

IBM Personal System/2 Model 50 Quick Reference and Reference Diskette for 50/60

IBM Personal System/2 Model 70 386 Quick Reference and Reference Diskette

IBM BASIC 3.0 – Personal Computer Hardware Reference Library – Binder + Slipcase

Vintage IBM Personal System/2 Model 50/60 Quick Reference and Reference Diskette