By Maslin, Mark A.
By Earthworks Group
By Cobi Smith
By Neil Chalmers, Phil Parker
By Keen, M.J.
By Blatt, Harvey, etc.
By Winkler, Helmut G.F., Chatterjee, Niranjan D., Froese, E.
By Milton, Giles
By Payton, Geoffrey, Paxton, John
By Lisa Firth, Lisa Firth
By Maslin, Mark, Durham, Emma
By Geological Sciences Inst.
By Hulbert, John
By Paul Robert Magocsi
By Jennifer Coldrey
By Wilson, Robin
By Knightley, Phillip, Crawford, R M
By Agnew, John A.
By Arnell, Kate
By Buckley, Richard
By Avseth, Per, Mukerji, Tapan, Mavko, Gary
By Norton, Arthur P., etc.
By Roan, Sharon
By Myers, Norman, Boulding, Kenneth E.
By John Seymour / Herbert Girardet
By Brenan / Huxley / Moon / Royal Botanical Gardens, Kew
By Ruparelia, Sanjay
By Shepherd, F.A.