Graeme Burk
From Tardis Wiki, the free Doctor Who reference
Graeme Burk wrote Turnabout is Fair Play, Reversal of Fortune and Doctor Who and the Adaptation of Death.
He also wrote the Doctor Who reference books Who is the Doctor, Who's 50: The 50 Doctor Who Stories to Watch Before You Die and The Doctors Are In: The Essential and Unofficial Guide to Doctor Who's Greatest Time Lord with Robert Smith?.