David "Zeb" Cook e Douglas Niles, Superpowers at War, in Strategy & Tactics, n. 100, marzo/aprile 1985, p. 29, ISSN 0049-2310 (WC · ACNP).
Douglas Niles, Ruweisat Ridge: The First Battle of El Alamein, in Strategy & Tactics, n. 105, gennaio/febbraio 1986, p. 28-30, ISSN 0049-2310 (WC · ACNP).
web.archive.org
SPI, 1977, p. 23. Gamespeak Glossary (PDF), in Introduction to War Gaming, New York, Simulation Publications, 1977 (archiviato dall'url originale il 10 giugno 2015).
Georgian, 1977, p. 10. Frederick Georgian, Basic Tactics for the New Wargamer (PDF), in Introduction to War Gaming, New York, Simulation Publications, 1977 (archiviato dall'url originale il 10 giugno 2015).
Georgian, 1977, pp. 8-10. Frederick Georgian, Basic Tactics for the New Wargamer (PDF), in Introduction to War Gaming, New York, Simulation Publications, 1977 (archiviato dall'url originale il 10 giugno 2015).
worldcat.org
David "Zeb" Cook e Douglas Niles, Superpowers at War, in Strategy & Tactics, n. 100, marzo/aprile 1985, p. 29, ISSN 0049-2310 (WC · ACNP).
Douglas Niles, Ruweisat Ridge: The First Battle of El Alamein, in Strategy & Tactics, n. 105, gennaio/febbraio 1986, p. 28-30, ISSN 0049-2310 (WC · ACNP).