By Harper, Eon
By Burke, P., Dewhirst, W
By Cuff, Colin
By Albany, E.
By Albany, E., Bull, R
By Hesse, K A
By Hesse, K.A.
By Turner, D. A., etc., Hony, B.V., Ledsham, A., Potts, I.A., Oakley, K.D.
By Turner, D. A., etc., Hony, B.V., Ledsham, A., Oakley, D.K., Potts, I.A., Lane, P.S.
By Turner, D. A., Hony, B.V., Ledsham, A.
By School Mathematics Project
By Crowden, Jane, Cowling, Sandy, King, Andrew, Mumford, Jeanette
By Cowling, Sandy, Crowden, Jane, King, Andrew, Mumford, Jeanette