Doctor Who and an Unearthly Child (in-universe)

 was a book written by Terrance Dicks which the Eighth Doctor claimed contradicted Doctor Who in an Exciting Adventure with the Daleks (also called Doctor Who and the Dead Planet). (PROSE: Bafflement and Devotion)

Behind the scenes
This is a version of Doctor Who and an Unearthly Child that exists within the Doctor's universe.