By Ernest N. McCarus Edited by Peter F. Abboud
By J. E. Dodd
By Leslie F. Musk, Musk, Leslie F.
By Malcolm E. Rose, R. A. W. Johnstone
By Stewart/Tall, Ian Stewart, David Tall
By School Mathematics Project
By Timothy P. Bayliss-Smith, Bayliss-Smith, Timothy P.
By George Boolos, Richard C. Jeffrey, Boolos, George, Jeffrey, Richard C.
By Ann Walker, Walker, Ann
By Dixon
By Susan Owens, Peter L. Owens, Owens, Susan, Peter L.
By Donald Ainley, Christopher Brown, Paul Butler, David Carrington, Graham Ellis
By Veronica Clark, Clark, Veronica
By Robert McNeill Alexander
By Stephen Bell, Peter Brown, Steven Buckley, Bell, Stephen, Brown, Peter, Buckley, Steven
By J. F. Humphreys, M. Y. Prest
By Roland Soper, David Sparks, Soper, Roland, Sparks, David
By Wes Magee
By Roy Edwards, Mary Edwards, Alan Ward
By Judith Baxter, Baxter, Judith
By Colin Goldsmith, David Nelson, School Mathematics Project
By Brian Bolt, Bolt, Brian