Booker, M. Keith (2008). Telotte, J.P. (ed.). "The Politics of 'Star Trek'". The Essential Science Fiction Television Reader. Lexington, Ky: University Press of Kentucky.
Burstein, Michael (2006). Gerrold, David; Sawyer, Robert J. (ed.). "We Find the One Quite Adequate: Religious Attitudes in 'Star Trek'". Boarding the Enterprise: Transporters, Tribbles, and the Vulcan Death Grip in Gene Roddenberry's 'Star Trek'. Dallas, Tex.: BenBella Books.
Farrand, Phil (2010). The Nitpicker's Guide for Classic Trekkers. New York: Random House.
Greene, Eric (2006). Gerrold, David; Sawyer, Robert J. (ed.). "The Prime Question". Boarding the Enterprise: Transporters, Tribbles, and the Vulcan Death Grip in Gene Roddenberry's 'Star Trek'. Dallas, Tex.: BenBella Books.
Muir, John Kenneth (2005). Exploring Space, 1999: An Episode Guide and Complete History of the Mid-1970s Science Fiction Television Series. Jefferson, N.C.: McFarland & Co.
Okuda, Michael; Okuda, Denise; Mirek, Debbie (2011). The Star Trek Encyclopedia. New York: Simon and Schuster.