By Maynard-Smith, John
By Williams, David
By Room, T. G.
By Telford, W
By O'Rourke, Joseph
By Lowrie, WILLIAM
By Fagan, Margo
By School Mathematics Project
By New Horizons Science
By School Mathematics Project, Ridley, Trevor
By Wells, Celia, Quick, Oliver
By Moffat, Graham, Bean, Gerry, Probert, Rebecca
By Gould, Mike, Higgins, Eoin
By Laycock, Keely
By Hobsbawm, E. J.
By Towsey, David
By Martin, Jean, Milner, Bryan
By Martin, Jean, Ellis, Sam, Cooke, Andy
By Ur, Penny
By Nettle, Mark, Hopkins, Diana
By Dyck, Ian
By Fuller, John
By University of Cambridge Local Examinations Syndicate
By Ashiagbor, Diamond
By Pappé, Ilan