101 Color Computer Programming Tips & Tricks 1981 How-To Book by Ron Clark

Usborne Computer Programming Tricks and Skills , Acorn BBC CBM Spectrum ZX81

2 1980s Ron Clark Color Computer Books: 101 Programming Tips Tricks, 55 Programs

101 Atari Computer Programming Tips & Tricks Book by Alan North

101 Programming Surprises & Tricks for your Atari Computer by David L. Heiserman

Computer Spacegames Vintage Usborne Programming Book BASIC Games for Micro

'ZX81 BASIC Programming' Vintage Computer Book Sinclair 2nd Edition 1981

Motorola MC6809-MC6809E Microprocessor Programming Manual 1981