By Drucker, H.M., etc., Dunleavy, Patrick, etc., Gamble, Andrew, Heffernan, Richard, Holliday, Ian, Peele, Gillian
By Payne, Anthony
By Scholte, Jan Aart
By Sorensen, Georg
By Nugent, Neill.
By Hulme, David, Turner, Mark, McCourt, Willy
By Turner, Mark & Hulme, David
By Dumbrell, John
By Dunleavy, Patrick, etc., Drucker, H.M., etc.
By Sinclair, Andrew
By Ellis, Geoffrey
By Alcock, A.
By Stevens, Anne
By Denters, Bas, Rose, Lawrence E.
By Mcphee, Peter
By Loughlin, John, Loughlin, James
By Bright, John
By Rubenstein, Richard, Roth, John K.
By Bright, John, John Bright
By Beeson, Trevor
By Open University
By Thompson, Grahame, Blowers, Andrew
By Colin Cunningham
By GREEN P
By EMSLEY ET
By SCHOLTE J
By Lewis, Norman, Graham, Cosmos, Beyleveld, Professor Deryck
By Navari, Cornelia