By Michael Burgan
By Neal Masters
By Institution Of Civil Engineers, A. H. Brampton
By John Clifford
By Michael B Abbott, W. Alan Price
By N.W.H. Allsop
By J. F. Douglas, John Gasiorek, John Swaffield, Lynne Jack
By Arnalich, Santiago
By Kees d'Angremond, F. van Roode
By Chakrabarti, Subrata Kumar
By Fredsoe, Jorgen, Sümer, B Mutlu
By Goda, Yoshimi
By Pepper, Ian L., Gerba, Charles P., Brusseau, Mark L.
By Anderson, John
By Ramakrishnan, T.V.
By Great Britain: Department of the Environment
By Purseglove, Jeremy
By Lamb, Sir Horace
By D. J. Acheson
By Giles, Ronald, Evett, Jack, Liu, Cheng
By Donnez, Pierre
By Burton, Anthony
By Watts, Martin
By Jirka, Gerhard H., Uijttewaal, Wim S.J.
By Sorensen, Robert
By Hager, Willi H.
By Vieux, Baxter E.
By Singh, V.P.
By Nagy, I.V., Asante-Duah, K., Zsuffa, I.