By Mackean, D. G., D. G. Mackean
By Parsons, Malcolm, Malcolm Parsons
By Pace, Pace, Clive, Clive Pace
By Fidge, Louis, Louis Fidge
By Bradberry, James, James Bradberry
By Letts, huggins-cooper-lynn, Paul Broadbent, Lynn Huggins-Cooper
By Clegg, C. J., C. J. Clegg
By Anna Donald & Michael Stein, Anna Donald, Mike Stein
By Jefferson, Brian, Brian Jefferson
By Bastian, Glenn, Glenn Bastian
By SPMG, Scottish Primary Maths Group, Scottish Primary Maths Group SPMG
By Domoney, Bill, Harrison, Paul, Bill Domoney, Paul Harrison
By McMonagle, Derek, Derek McMonagle
By New Scientist, O'Hare, Mick
By Moore, Keith L., Agur B.Sc. (OT) M.Sc PhD, Anne M. R., Keith L. Moore, Anne M. R. Agur B.Sc. (OT) M.Sc PhD
By Erik Blakeley
By Byrne, David, David Byrne
By Marland, Michael
By Mr Michael Marland
By Mary St.Amour, Ian Stevens
By Skuse, Allen
By Ms Ann Childs, Mr Chris Laine, Ms Andy Byers, Childs, Ms Ann, Laine, Mr Chris, Byers, Ms Andy
By Mary Jones
By Philip Bradfield, Steve Potter, Bradfield, Philip, Potter, Steve
By D A Turner, I A Potts, W R J Waite, B V Hony
By Marten, Michael, etc.
By Taylor, Gordon Rattray
By David Wray, Maureen Lewis