Atari Program Exchange Spring 1983 Software Catalog APX

Atari Program Exchange Summer 1982 Software Catalog APX

How to program your Atari in 6502 Machine Language by Sam D. Roberts

Understanding ATARI ST Basic Programming by Tim Knight

APX Atari Program Exchange User-Written Software Manual "Reversi II"

APX Atari Program Exchange Product Downhill Skiing 16K Cassette Game & Manual

Atari Program Exchange Winter 1982-1983 Software Catalog APX

NAUTILUS Manual for Atari