By Cambridge School Classics Project
By Apperley, Jo
By Howell, Gill
By Vokins, M.D.W.
By Havelock, Peter, Hasler, John, Flew, Richard, Mcintyre, Donald, Schofield, Theo
By Bailey, Patrick, Fox, Peter
By Morris, Marla
By Frances Rust, Helen Friedus
By University of Cambridge Local Examinations Syndicate
By Odam, Professor George, etc.
By Donaldson, Julia
By The School Mathematics Project
By School Mathematics Project
By Hunt, Roderick, Brychta, Alex
By Bennett, Neville
By Brent, Allen
By Tyler, Ralph W.
By Eaton, James
By Slater, Ann, Blinko, Jannie
By Berwick, Gwen, Thorne, Sydney
By Provan et al., Sarah
By Allan, Ray, Williams, Martin
By Denby, Neil, Thomas, Peter
By Howell, Gill, George, Amanda, Hughes, Monica, Macdonald, Isabel