By Vaclav Smil
By Dennis Anderson, Thomas Arthur Williams, David Ray Anderson, Dennis J. Sweeney
By Tal, Joseph
By H.T. Hayslett
By Inc. SPSS
By Sheldon M. Ross
By D.R. Cox
By Bernard W. Lindgren, G.W. McElrath, D. A. Berry
By Manly, Bryan F.J.
By Caswell, Fred
By Wilson, John Graham
By Jones, M.E.M.
By Bryars, D.A.
By English, Veronica
By Brown, R. A., Swanson Beck, J.
By Swinscow, T. D. V.
By Bostock, L., Chandler, S.
By Crawshaw, J., Chambers, J.
By McGill, Fiona, McLennan, Stewart, Migliorini, Jane
By Crawshaw, Janet, Chambers, Joan, Brian Close
By Haighton, June, Wake, X, Haworth, Anne
By Gaither, C.C., Cavazos-Gaither, Alma E
By Buglear, John
By Dan Gardner, Gardner, Dan
By Field, Andy
By Pennings, Paul, Keman, Hans, Kleinnijenhuis, Jan
By Chow, Siu. L
By Sapsford, Roger