By H.H.Swinnerton
By R.S. Thorpe, G.C. Brown
By Westbroek, P., De Jong, E.W.
By Fortey, Richard A.
By Marjoribanks, Roger
By Van Driessche, Alexander E.S., Kellermeier, Matthias, Benning, Liane G., Gebauer, Denis
By Sunagawa, Ichiro
By Marumo, F.
By MacDougall, J. D.
By van den Haute, P., De Corte, Frans
By Varentsov, I.M.
By Severin, Kenneth P.
By Bennett, Richard, Hulbert, Matthew
By Pulinets, Sergey, Boyarchuk, Kyrill
By Pitcher, W.S.
By Manning, D.A.C., Hall, P.L., Hughes, C.R.
By Lima-de-Faria, J.
By Bartholomew, Mervin J., Hyndman, Donald W., Mogk, David W., Mason, Robert
By Mavko, Gary, Mukerji, Tapan, Dvorkin, Jack
By Bell, Pat, Wright, David, Hayward Art Group
By ARDUINI, Paolo
By Ringrose, Philip, Bentley, Mark
By Hantschel, Thomas, Kauerauf, Armin I.
By Pierce
By Norman, David
By Božica, Maric, Zvonimir, Lisac, Antun, Szavits-Nossan
By Freeman, T.J., Littlejohn, G. S., Driscoll, R.M.C.