By Geddie
By Walker
By Hilliam, David
By Scottish Mathematics Group
By Rees, Nigel
By Tinsley, Jo, Bramwell, David
By Derbyshire, Ian, J.Denis
By No Author.
By Schwarz, Catherine
By E. M. Kirkpatrick
By Rossetti, Christina, Rackham, Arthur
By Wilson, Colin, Damon
By Corbeil, Jean-Claude, Archambault, Arianne
By Collocott, T.C.
By Chambers
By Combe, Fernand, Twaddle, Alison
By Unknown
By NO AUTHOR
By Knott, C.G., Comrie, L.J.
By Nuffield
By Taylor, A. J.
By Lexus
By Nuffield Mathematics Project
By Kirkpatrick, E.M., Schwarz, Catherine
By Nicholls, Christine
By Fitzhenry, Robert J.