Published by Cowboys 'N' Beans Books

First electronic edition published: 2013

Second electronic edition published: 2020

Portions © 1987-2020 Klas Eriksson, Mike Williams, Joe Armstrong

Portions © 1992, 1993 Peter Norvig

Portions © 1992, 1993 Kent Pitman

Portions © 2013-2020, Duncan McGreggor

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

Creative Commons License

Cover art: Original version from 1968 DEC FOCAL Programming Manual with stylised PDP-8 as the dominant cover graphic. Adaptation of the original as a spoof and homage was made in 2015 by Duncan McGreggor.