By R.C. Holland
By Graham Giller
By Ian Robertson Sinclair, Geoffrey E. Lewis
By M. Plant
By M.P. Horsey
By Noel M. Morris
By Leach
By D C Green
By W A Kimber
By Michael H. Tooley
By Will Kimber
By Paul M. Chirlian
By R.E. Vears
By John O. Bird
By The Editors of Rea, Gu
By Albert Paul Malvino, Jerald Brown
By David Turner, Andy Thomas
By Roger L. Tokheim
By John Morton (Oxford University, UK)
By Gordon Mccomb
By O.N. Bishop
By Charles A. Schuler
By Natalie Lunis
By Anthony C. Fischer-Cripps (Fischer-Cripps Laboratories Pty Ltd, Sydney, Australia)
By Gerd Keiser
By John G. Proakis
By Robert Collin
By John Gowar