By Gregory, Jenniy, Silveira Dr., Semida, Derrick, Anthony, Cowley, Paul, Alinson, Catherine, Parish, Oliver
By Pratt, Brian, Boyden, Jo
By Lancashire, Sarah, Kenna, Jeff, Fraenkel, Peter
By Kenna, Jeff, Gillet, Bill
By Midgley, James
By Lim, Hilary
By Wiseman, John A.
By Bereketeab, Redie
By Nagle, Garrett, Spencer, Kris
By Foulds, John
By World Bank
By Lorenzo Cotula
By Furedi, Professor Frank
By Harris, G.
By Maathai, Wangari
By Bowker, Mike, Ross, Cameron
By Staples, Amy L.S.
By Michael Bradshaw, Alison Stenning
By Burman, Stephen
By McMichael, Philip
By Sireau, Nick
By Tobias Hagmann, Filip Reyntjens
By Robinson, Jennifer
By United Nations University Press
By Ikein, Augustine A.
By Oehlschlegel, Maria
By Callaghy, Thomas M.
By Stubbs, Richard, Underhill, Geoffrey R.D.
By Davis, Jan, Lambert, Robert
By World Bank Group Publications