Rank Xerox 820: Supercalc Manual
Rank Xerox 820: Supercalc User's Guide & Reference Manual
Documentation 1.0. July 1981.
For use with Rank Xerox 820 system.
Very large A4 ring binder in Xerox 820 cover.
This exhibit has a reference ID of CH7128. Please quote this reference ID in any communication with the Centre for Computing History.