The Hitchhiker’s Guide to GEOS.
This version was found on the net, and cleaned up a bit.
Big thanks to Robert H Swanson for donating €35.
Commodores Programmer’s Utilities.
Super DISKDOC Disk Software, thanks to John Watson.
Epyx Programmers’ BASIC Toolkit and Quick Reference Guide. Thanks to John Watson.
Tasword 64 The Word Processor
Assembler Tutor with disk. Also known as Commodore 64 Assembler – A Tutorial.
GEOS Inside and Out, donated by John Watson, thanks a lot.
Amtorsoft Operations Manual for the VIC-20 and COM-64
GEOS Bedienungshandbuch (German)