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

Sinclair ZX Spectrum Intro Guide (First Ed.) Programming Guide Manual Bundle

Programming for Real Application Randle Hurley Sinclair ZX81 Book

ZX Spectrum Basic Manual Introduction Book & Ephemera 1982 First Edition

Sinclair ZX Spectrum Basic Programming Manual 1982 Spiral Bound Original

Sinclair ZX Spectrum BASIC Programming & INTRODUCTION Manuals

Sinclair ZX81 Computer Book: The ZX81 Pocket Book - Trevor Toms / Phipps Assoc

Sinclair ZX81 Computer Book: The ZX81 Companion - Bob Maunder, Linsac, 1981