By Schutz, Bernard F.
By Allen Sharp
By Wright, Andrew, Betteridge, David, Buckby, Michael
By Collini, Stefan
By Rosen, Michael, Griffiths, Joan
By Langdon, Nigel, Snape, Charles
By School Mathematics Project
By Held/Thompson
By Carré, Clive, Barlex, David, David Barlex, Clive Carre
By Jennings, Arthur
By Kempa, Richard
By Swan, Michael, Walter, Catherine
By Klippel, Friederike, Friederike Klippel
By Leslie F. Musk, Musk, Leslie F.
By paul-webster, Webster, Paul
By Webster, Paul, Paul Webster
By Sternberg, Robert
By Fischhoff, Baruch
By Chung, Daniel Y. F.
By Puchta, Herbert, Stranks, Jeff, Carter, Richard, Lewis-Jones, Peter
By Ricoeur, Paul
By Worrall, John, Gregory Currie
By Martial; Juvenal
By Levenson, Michael
By Coe, Norman, Rycroft, Robin, Ernest, Pauline
By Littlewood, WILLIAM
By Ur, Penny, Penny Ur
By Lass, Roger