By Kingfisher Science Encyclopedia
By Times Books
By Christopher Fagg, Frances Halton
By Burl, Aubrey
By Jones, Emrys (consultant editor)
By Mehling, F.N.
By Gish, Suane, Bliss, Richard
By R L Jones / P R Cundill
By Bunnett, R.B., R B BUNNETT
By The Worldwatch Institute
By Clark, Audrey N
By Ollier, Cliff
By Dougal Jerram
By Ross, Reynolds
By Allaby, Michael
By Goudie
By Hydes, Jack
By Small, John, Ross, Simon, Witherick, Michael
By Saunders, Doug
By Pearce, Fred
By Stewart, Murray
By N/A
By Severin, Tim
By Edward T Connold
By S N Sedgwick
By J H Crabtree