By Todd, Joseph Derwent
By Schools Council Engineering Science Project
By C. a Nash
By Trevelyan, Humphrey
By Toyne, Peter
By Mary B. Hesse
By S. Ainsworth
By Mackenzie, W. J. M.
By Thorpe, Martin, Martin Thorpe
By Heclo, Hugh, Wildavsky, Aaron
By Lynn, Paul A.
By Blainey, Geoffrey
By Barber, Noel
By Janet Arnold
By Asa Briggs
By IL MacDougall, APG Macdonald
By Marwick, Arthur
By Adams, Richard M., etc.
By Calvert, Peter
By Lynn, Richard
By Cooper, WILLIAM
By Forward, Nigel
By O'Brien, Raymond John, Garcia, G.G.
By Ferguson, John
By David McLellan, McLellan, David
By John Wroughton
By Ramsbottom, Edward, Dyke, John