6809 Assembly Language Programming - Leventhal Tandy Color Computer 3 CoCo OS-9

6809 Microcomputer Programming & Interfacing - Tandy Color Computer Coco 3

6809 Assembly Language Programming & Interfacing Tandy Color Computer Coco 3 OS9

Z80 Assembly Language Subroutines ZX Spectrum Exidy Commodore 128 Programming

1964 Electronic Analog & Hybrid Computers Korn 1st PACE EAI TR-48 Philbrick K2-W

1985 Commodore 64 Troubleshooting & Repair Art Margolis 350pgs 1541 Disk Drive

1983 Programming the Intel 8086 / 8088 Coffron 300+pgs Sybex IBM 5150 5170 PC

1987 Apple IIGS Technical Reference 400pg Graphics Sound 65816 Programming GS/OS