By Wood, John, Emanuel, Rosemary, Crawshaw, Janet
By Turner, D A, Potts, I A, Waite, W R J, Hony, B V
By School Mathematics Project
By Smith, Mr Harry
By Author Team, Combined
By Pledger, Keith, Cole, Mr Gareth, Kent, Mr David, Jolly, MR Peter, Keith Pledger, Mr Gareth Cole, Mr David Kent, Mr Peter Jolly
By Bright, Ms Sue, Birkett, Dan, Pledger, Keith
By Cole, Mr Gareth, Jolly, MR Peter, Kent, Mr David, Pledger, Keith
By Pledger, Keith, Kent, Mr David
By Robert Glen