By BBC
By Graham Lawlor, Rob Kearsley Bullen
By Kearsley Bullen, Rob
By Foulsham Books
By Cotton, David
By Mathematics Centre
By David Cotton
By Simmons, Malcolm
By Speed, Brian
By Shell Centre Joint Matriculation Board of Mathematics
By Fleet, Tony
By Paul Latham, Percy Truelove
By NCCT
By Eric A. Albany
By Shuard, H
By Hony, Viv, Turner, David, Oakley, K, Lane, P
By Turner, D. A., etc., Hony, B.V., Ledsham, A., Oakley, K.D., Potts, I.A., Lane, P.S.
By Hony, B.V., Ledsham, A.
By Turner, D. A., Hony, B.V., Ledsham, A.
By Turner, D. A., etc., Hony, B.V., Ledsham, A., Oakley, D.K., Potts, I.A., Lane, P.S.