By Monkhouse, Francis John, Small, J.
By Hutchinson, Stephen, Hawkins, Lawrence E.
By Harrison, John
By Wilgus, C.K., etc.
By Hoare, Philip
By Gelling, Margaret
By Helen Douglas, Rebecca Solnit
By Dobrzynski, Jan
By Palmer, Tim
By Silcock, Lisa
By Berger, Melvin, Schaffer, Donna
By Jackson, Mike
By Purves, Libby
By Potts, Jonathan, Smith, Hance D.
By S. G. Thomas, David
By DK
By Lowe, J. John
By Earle PhD, Sylvia A
By Andromeda
By James Fisher, R.M.Lockley
By Godfrey-Smith, Peter
By Fleming, Ciji A.
By HarperCollins
By Ackroyd, Peter
By Hughes, Catherine D
By Mortenson, Greg, Relin, David Oliver
By Schofield, Lee
By Harrison, Paul, Collins Big Cat
By i-SPY
By Vieira, Gonçalo, Zêzere, Jose Luis, Mora, Carla