Twentieth Edition: 1999. Editor: Alan C. Butcher Published: 1999.

Twentieth Edition: 1999.
Editor: Alan C. Butcher
Published: 1999.
Pages: 144 + 32. Price: Ell.99.
ISBN: 0 7110 2643 2.
Cover: 8572 at Weybourne 9/98.
Keynotes: 32 page Heritage
Timetable Supplement now
standard.
Keynotes: Price increase.
Code references dropped.