Programmer’s Reference Guide Atari 400 800 Computers David Heiserman

Programmer's reference guide for the ATARI 400/800 computers * David Heiserman

ATARI BASIC Book for 400 800 Computers 1979 Self Teaching Guide

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COMPUTE!'s First Book of Atari A Programmers Guide for Atari 400/800 computers

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Your Atari Computer: A Guide to Atari 400/800 Computers | Book by Lon Poole

COMPUTE!'s Second Book of Atari 400/800 BASIC Programmer’s Guide 1982