By McGuire, Peter, Smith, Ken
By Webber, Beryl, Haigh, Jean
By Andrew Baines
By Brighouse, Alan, etc., Godber, Patilla
By Brodie, Andrew
By Scottish Primary Mathematics Group
By Parsons, Richard, Richard Parsons
By Tipler, M. J.
By Gordon, Keith
By Kearsley Bullen, Rob, Edmondson, Andrew, Ward, Tony
By Adhami, Mundher
By EXPORT, NOT FOR
By King, Andrew
By Watson, Christine, West, Heather
By Allan, Ray
By Evans, Kevin, Gordon, Keith, Speed, Brian, Kent, Michael
By Millar, Archie, Bennett, Jill, Galsworthy, Gay John
By Peter Patilla, Patilla, Peter
By Sanders, Susan E.