By Geoff Buckwell, Robert Solomon
By Macmillan
By Haighton, June, Haworth, Anne, Lomax, Steve, Manning, Andrew, Scott, Kathryn, Sherrington, Chris, Thornton, Margaret, JOHNS, Janice, Willis, Mark, Metcalf, Paul
By Senior, Trevor
By Bowles, David, Jefferson, Brian, Mullan, Eddie, Rayneau, John, Rowland, Mark, Wagner, Robert, Williams, Paul, Wiseman, Garry, Wood, Katie, Baker
By Hill, Peter
By Straker, Anita
By School Mathematics Project
By Shepperd, C.J., J.A.H.
By Thornton, Margaret, Lomax, Steve, Manning, Andrew, Sherrington, Chris, Willis, Mark, Haworth, Anne, JOHNS, Jan, Haighton, June, Metcalf, Paul
By Mark Patmore
By Linsky, Jean, Goldie, Sophie
By Stebe, Mills, et al
By Byrd, Greg
By Ellis, Rob, Hipkiss, Kath, Stobart, Colin
By Moore, Evelyn C.
By Hurt, Roger, Hurt, Mary
By Hand, David J.
By Jan Gullberg, Gullberg, Jan, Hilton, Peter
By La Rondie, Paul, Kemp, Ed, Buchanan, Laurie, Fensom, Jim, Stevens, Jill
By Open University Course Team
By Hall, F. M.
By SPMG
By Devlin, Keith J.
By Collins A-level
By Sherran, Peter, Crawshaw, Janet
By Parsons, Richard
By Sherran, Peter