By Whiten, Andrew
By Schulkin, Jay
By Cooke, D
By Hornby, William F., Jones, Melvyn
By The School Mathematics Project
By J C Burkill
By Southwick, Steven M.
By N/A
By G N Ward
By G.A. Kerkut
By Buckton, Chris, Corbett, Pie
By Gibson, Rex
By Davies, Anthony, Wells, Stanley
By Bell, Andrew
By Skelton, Peter W., Spicer, Robert A., Kelley, Simon P., Gilmour, Iain
By Harp, Richard
By Hamilton, A. G.
By French, M. J.
By Percival, Ian
By Smart, W. M., Green, R. M.
By Graham-Cameron, Mike
By Knight, Gareth
By Ian Pritchard
By Stiglitz, Joseph
By Andy Cooke, Jean Martin
By Cooke, Andy, Martin, Jean
By Ingle-Smith