By Wakeford, Jacqueline
By Brewer, Roy
By Dartford, Mark
By Gibbs-Smith, Charles Harvard
By Tailfeather, Speck Lee, Gurney, Stella, Seki, Natsko
By Taylor, V.J.
By Ford, Brian J.
By Nock, O. S.
By Hammond, John
By Breckon, Don
By Electrical Development Association
By Lock, Mr Dennis
By Suzuki, David T., Griffiths, Anthony J.F., Miller, Jeffrey H., etc.
By Russo, V. E. A., Cove, D. J.
By Health and Safety Executive (HSE)
By Verney, Michael
By Duncan, Tom, Tom Duncan
By Duncan, Tom
By Geof Royle, Margaret K. Wright, Royle, Geof, Wright, Margaret K.
By Tom Duncan
By Bishop, O.N.
By Hall, Ernest
By Wildig, Alan
By Graf, Rudolf F., Whalen, George J.
By Webb, Tony, Lang, Tim
By Barron, R.S.
By Ponchaud, R.D.
By Turnill, Reginald
By Maurice, RDA