Apple IIGS ProDOS 16 reference : includes system loader.
Apple Computer, Inc.
Reading, Mass. : Addison-Wesley,
c1987.
"Apple II."
Written by Apple Computer, Inc.
System requirements for computer disk (version 1.0): Apple IIGS; 256 K RAM minimum; Apple IIGS system disk; 1 disk drive (2 recommended).
Includes index.
Apple IIGS (Computer)
ProDOS (Computer operating system)