By George Dimitroulis, Brian Avery
By Wells, Stanley W.
By Geoffrey M. Hodgson
By Sean Connolly
By McGraw Hill
By John Ayto
By Anthony I. Mallet (University of Greenwich, UK), Steve Down (Downstream Data, USA)
By J. Stenesh (Western Michigan University)
By Nicholas P Cheremisinoff, Consulting Engineer (Director of Clean Technologies and Pollution Prevention Projects at Princeton Energy Resources International, LLC, Rockville, MD, USA)
By Sommerville, Donald
By Peter Groves
By Katherine Barber (Editor-in-Chief of the Canadian Oxford Dictionary)
By Martyn Lewis, B. Tidy
By Alan mitchell, John Wilkinson
By Richard Fitter, Alastair Fitter, Ann Farrer
By Hill, C P.
By CHRISTOPHER TYERMAN
By Richard A. Fletcher
By C.R.N. Routh, Peter Holmes
By Roger Ellis
By John Drury
By Kris Jamsa
By John Perry
By David Quinlan
By Ronald M. Nowak
By Giles Sparrow
By Gheerbrant, Alain, Chevalier, Jean, Buchanan-Brown, John