1990 based on a series created by Wilfred Greatorex ; novelization by Maureen Gregson ; novelization based on scripts by Wilfred Greatorex, Edmund Ward and Arden Winch
Gregson, Maureen.
Greatorex, Wilfred.
Ward, Edmund.
Winch, Arden.
London Severn House [Distributed by Hutchinson],
1978
Originally published: London : Sphere, 1977
English fiction.