By Myers, H.P.
By Ousby, Ian.
By School Mathematics Project
By Noel M. Morris
By Keith Brindley
By Anthony C. Fischer-Cripps (Fischer-Cripps Laboratories Pty Ltd, Sydney, Australia)
By John G. Kemeny, Thomas E. Kurtz
By Collins GCSE
By C. Avgerou, G. Lanzara, L. Willcocks
By Willcocks, Leslie P.
By M. Lacity, L. Willcocks
By John L. Phillips
By John Bird (Defence College of Technical Training, UK)
By Morton Hunt
By Desmond Morris
By P. G. Drazin (University of Bristol)
By William P. Richardson
By Edmund Garnweidner
By Tipler / Vickers, M J Tipler
By Theoni Pappas
By David Millar, margaret millar, D. Millar, J. Millar
By Bruce W. Char, et al
By Bruce W. Char, Keith O. Geddes, Gaston H. Gonnet, Benton L. Leong, Michael B. Monagan
By Ioan James (University of Oxford)
By MathWorks, Inc.
By Andrew Scott
By Edward Speyer
By Lionel Salem, Frederick Testard, Coralie Salem, James West
By Cesare Emiliani
By D'Arcy Wentworth Thompson, John Tyler Bonner