The City on the Edge of Forever (reference book)
Harlan Ellison's The City on the Edge of Forever, subtitled The Original Teleplay That Became The Classic Star Trek Episode, is a reference book written by Harlan Ellison, and first published in a limited edition hardback by Borderlands in . The book includes the original teleplay of  as written by Ellison, along with an essay setting out the writer's perspective of the events surrounding the development of the episode.

Summary 
From the book jacket (paperback edition)
Star Trek fans have searched for years for this rare and elusive original teleplay written by Harlan Ellison over 25 years ago.  has been surrounded by controversy since the airing of an "eviscerated" version - which subsequently has been voted the most beloved episode in the series' history. In its original form, The City on the Edge of Forever won the 1966-67 Writers Guild of America Award for best teleplay. As aired, it won the 1967 Hugo Award (the only teleplay ever to do so!)

THE CONTROVERSY CONTINUES

White Wolf Publishing presents, for the first time in unlimited edition trade paperback format, the unrevised, unadulterated version of Harlan Ellison's award-winning Star Trek script, The City on the Edge of Forever - the spark that incited Ellison's vehement and long-live feud with late TV producer Gene Roddenberry!

The City on the Edge of Forever is, at its most basic, a poignant love story. Ellison takes the reader on a breathtaking trip through space and time, from the future, all the way back to 1930s America. In this harrowing journey, Kirk and Spock race to apprehend a renegade criminal and restore the order of the universe. It is here that Kirk faces his ultimate dilemma: a choice between the universe - or his one true love.

White Wolf's Borealis Legends imprint makes available this astonishing teleplay as Ellison intended it to be aired. The author's introductory essay (expanded by 15,000 words from the limited edition) reveals all of the details of what Ellison describes as a "fatally inept treatment" of his creative work. Was he unjustly edited, unjustly accused, and unjustly treated?

See also 
  - The Harlan Ellison Collection edition of the teleplay.
Star Trek: Harlan Ellison's The City on the Edge of Forever - IDW Publishing's adaptation of the original teleplay. 

fr:The City on the Edge of Forever (ouvrage de référence)
City on the Edge of Forever, The