By Rosser, W. G. V., McCullough, R.K.
By D. H. McIntosh and A.S.Thom
By Perkins, William H., Kent, Raymond D.
By Sell, R.G., Shipley, P.
By Grandjean, E., Davis, P. R. ldroyd, Oldroyd, H.
By Michael Farrell
By Julie Sanders
By C. Guignon, Guignon, Charles, C.
By McLuhan, Marshall
By N/A
By Brown, D.S.
By Unknown
By Chamberlain, Geoffrey, Zander, Luke
By Pickering, H.S.
By Hill, Halstead
By Anthony H Barnett
By Pringle, Burtt
By Taylor, A.W.B., Noakes, G.R.
By Lewis, M. J.
By D. H. Martin