Sinclair ZX81 Software Catalogue + Leaflet

30 Programs for the ZX81 1kl Sinclair ZX81 Book CL01

Spectrum Book of Games Mike James Sinclair ZX Spectrum Book CL01

Supercharge your spectrum David Webb Sinclair ZX Spectrum Book CL01

The Spectrum Handbook , Langdell , Sinclair ZX Spectrum Book

Spectrum Machine Language or the Beginner Tang Sinclair ZX Spectrum Book CL01

The Spectrum Programmer S M Gee Sinclair ZX Spectrum Book CL01

Guide to Computer Jargon Usborne Computer Book ZX Spectrum Commodore CL01