By D.S. Harris, P.N. Robson
By Paul Henderson
By C Plumpton, P.S. MacIlwaine
By Alan Elliott Guile, William Paterson, Guile, Alan Elliott, Paterson, WILLIAM
By Singh, Madan G., Titli, A.
By J. M. Coulson, J. F. Richardson
By Stanley Ernest Hunt
By C Plumpton, P. S. W. MacIlwaine
By Charles Plumpton, P.S. MacIlwaine
By A. Gardel
By R. J. Morris, Thomas R. Kratochwill
By M. G. Bowler
By Steven J. Apter
By R.V. Patel, N. Munro
By Geoffrey Lamb, Lamb, Geoffrey
By Elizabeth B. Yost, etc.
By E.L. Feindler, R.B. Ecton
By Arnot, Madeleine
By J. M. Coulson, J. F. Richardson, J. R. Backhurst, J. H. Harker
By Barry M. Trost
By G. Pattenden (University of Nottingham, UK)