Shaun Lyon; et al. (31 March 2007). "Planet of the Spiders". Outpost Gallifrey. Archived from the original on 12 December 2004. Retrieved 30 August 2008.
Shaun Lyon; et al. (31 March 2007). "Planet of the Spiders". Outpost Gallifrey. Archived from the original on 12 December 2004. Retrieved 30 August 2008.