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Roddenberry, Gene (Executive Producer). "The Deadly Years." Star Trek, Season 2, Episode 11. Directed by Joseph Pevney. Written by David P. Harmon. Desilu Productions, 8 December 1967.
Roddenberry, Gene (Executive Producer). "The Deadly Years." Star Trek, Season 2, Episode 11. Directed by Joseph Pevney. Written by David P. Harmon. Desilu Productions, 8 December 1967.
