By Culver, Keith, Castle, David
By Gordh, Gordon, McKirdy, Simon
By Greenwood, Paul L., Bell, Alan W., Vercoe, Philip E., Viljoen, Gerrit J.
By Kraus, Fred
By Yahner, Richard H.
By Vacchi, Marino, Pisano, Eva, Ghigliotti, Laura
By King, Peter
By Pinedo-Vasquez, Miguel, Ruffino, Mauro L., Padoch, Christine, Brondízio, Eduardo S.
By Amanda Owen
By Starkey, Jane
By Herriot, James
By Oates, Leila, Johnston, Laura, Betts, Natalia
By Russell, Kenneth, Slater, Ken
By Buckett, M.
By Owen, J.B.
By Stansfield, Malcolm
By Nelson, Robert H.
By Goodwin, Derek H.
By Hudson, W. H.
By Duc Françoise
By Neville Beynon
By Gail Danerow
By Philip Walling
By Herriot, James, James Herriot
By Andrew W. Speedy
By Douglas Powell, William Leiss
By Andrew F. Fraser, Donald M. Broom, Donald F. Broom
By Paul R. Greenough, A. David Weaver, Finlay J. MacCallum
By John Bryn Owen
By Edward Hart