Spurgeon, Tom (December 1, 2006). "Dave Cockrum, 1943-2006". The Comics Reporter. Archived from the original on August 10, 2013. Retrieved April 25, 2009.
Spurgeon, Tom (December 1, 2006). "Dave Cockrum, 1943-2006". The Comics Reporter. Archived from the original on August 10, 2013. Retrieved April 25, 2009.