TRS 80 Assembly Language Subroutines By William Braden, Jr. Paperback Book

Z - 80 and 8080 Assembly Language Programming Paperback Book by Kathe Spracklen

Z80 Assembly Language Programming Paperback Book By Lance A. Leventhal

TRS - 80 Assembly Language Paperback Book by Hubert S. Howe Jr.

Microsoft BASIC-80 Reference Manual Version 5 Vintage CP/M Z80 8080

Original 1979 Radio Shack TRS-80 Computer Expansion Interface Hardware Catalog

Apple Power Mac G4 Cube retail Software RESTORE CD Version

11 TRS-80 Microcomputer News 1979 Vintage Computer Tech Magazine Lot