Platform 5
Publishers Platform 5 began bringing these out in 1980, and still continue today. I've featured just the years up to 2000 here. They were mainly annual, other than a years when there were two editions.
For a more in-depth look at the full range of Platform 5 stock books, Dave Rowland's site is highly recommended.
Multiple Unit Pocket Book
Containing DMUs and EMUs
1980
Published in May 1980.
1981
Released in June 1981.
1982 (Winter)
Released February 1982. Cover date was just 1982, when the next issue was released - Summer 1982, the first extra bi-annual edition - it noted to consider the 1982 edition as a winter one.
Summer 1982
The first extra bi-annual edition published in July 1982.
Spring 1983
From February 1983.
1984
Although not reflected in the cover date, it was released in the Spring.
1985
Released in Spring 1985.
Spring 1986
Published in February 1986.
Summer 1986
Published in July 1986.
Spring 1987
Published in February 1987.
Summer/Autumn 1987
Published in June 1987.
Winter 1988
Published in December 1987.
Summer 1988
Published in June 1988.
Diesel Unit Pocket Book
Now only diesel units, the electrics getting their own edition.
1989
Published in March 1989.
Spring 1990
Published in December 1989, a return to the bi-annual edition.
Summer 1990
Published in March 1990.
Spring 1991
Published in December 1990.
1992
Published in December 1991.
1993
Published in December 1992.
DMUs & Channel Tunnel Stock
Channel Tunnel vehicles have been added.
1994
Published in December 1993.
1995
Published in December 1994.
DMUs & Light Rail Systems
Channel Tunnel vehicles have been swapped for Light Rail Vehicles.
1996
Published in December 1995.
1997
Published in December 1996.
1998
Published in February 1998.
1999
2000