|Encyclopedia of the Worlds of Doctor Who|
Three such volumes (A-D, E-K and L-R) were published between 1987 and 1990 — unfortunately, due to poor sales, the planned fourth volume in the series (S-Z) was cancelled and never saw the light of day.
|Encyclopedia of the Worlds of Doctor Who: A-D||David Saunders||UK hardback||Nov 1987||0-946826-54-4||7.3||None|
|UK paperback||Oct 1988||0-340-42842-2|
|Encyclopedia of the Worlds of Doctor Who: E-K||David Saunders||UK hardback||Mar 1989||1-85340-036-X||7.3||None|
|UK paperback||Nov 1989||0-340-51106-0|
|Encyclopedia of the Worlds of Doctor Who: L-R||David Saunders||n/a||Jul 1990||1-85340-081-5||6.3||None|