B. W. Petley ; consultant editor, A. E. Bailey. compiled by consulting editor, Elihu F. Bradley. Peter Goodfellow ; consultant editor, Tony D. Williams. editor, Maritz Vandenberg ; consultant editor, A. J. Elder. consultant editor, Asa Briggs. consultant editor, D.H.Hey. consultant editor, A. D. Buckingham. consultant editor, C. W. J. Wilson. consultant editor, Glyn Daniel.