By CGP Books, CGP Books
By Andrew Brodie, Judy Richardson
By Fennell, Anne
By Penny Johnson
By Rodda, G.W.
By Karen Hamilton, Hamilton, Karen
By Clarke, Peter
By Vorderman, Carol
By Huggins-Cooper, Lynn, Lynn Huggins-Cooper
By Page, Gerald
By Cooper, Richard
By Hall, Godfrey
By Neil Morris
By Milburn, Constance
By Constance Milburn
By Pattinson, Mary, Hutchison, Susan
By Hunter, Ann, Sutherland, David
By SPMG, Scottish Primary Maths Group, Scottish Primary Maths Group SPMG
By Hunt, Roderick, Brychta, Alex, Mr. Alex
By Hunt, Roderick, Brychta, Alex
By J. Hallam, etc.
By Byrne, David, David Byrne