Willey, Martin. "Space: 1999 in the USA". The Catacombs: International Guide. Archived from the original on 30 September 2007. Retrieved 16 August 2009.
Willey, Martin. "Space: 1999 in the USA". The Catacombs: International Guide. Archived from the original on 30 September 2007. Retrieved 16 August 2009.