edit by David Campton and A. L. Jones edited by David Thompson and Ian Christie edit by D. Adamson and D. Cobb edit by Anthony Ralston and Gail S. Young edited by David Jackson and Dennis Pepper edit by A. J. Thomson and A. V. Martinet edit by David Crystal and Derek Davy edit by J. B. Heaton and N. D. Turton edit by P. M. Whelan and M. J. Hodgson edit by David M. Davidson and David Blot