By Thompson, Paul, Wilson, Ben
By Mark Carwardine, Erich Hoyt, R. Ewan Fordyce, Peter Gill, Mark Carwardine, Erich Hoyt
By Young, Geoffrey
By Reader's Digest
By Descy, Jean-Pierre, Darchambeau, Francois, Schmid, Martin
By Haggis-on-Whey, Dr. Doris, Benny
By Macan, T. T., Cooper, R. Douglas
By Charlie, Jay, Blowfish, Bartley, David
By Badger, David, Netherton, John
By William I. Milwee
By Jackman, Leslie.
By Pitkin, Linda
By National Geographic Kids
By Philippe De Vosjoli
By Sandy Sheehy (author)
By Burgess, Warren E.
By Pickard, George L., Emery, W.J., Emery Professor, William J.
By Pedlosky, Joseph
By Seckbach, Joseph, Kociolek, Patrick
By Das, Debabrata
By Goncharuk, Vladyslav V.
By Ereskovsky, Alexander V.
By Travis, Charles, Ludlow, Francis, Gyuris, Ferenc
By Goulletquer, Philippe, Gros, Boeuf, Gilles, Weber, Jacques
By Seckbach, Joseph, Grube, Martin
By Elliott, J.M.
By Elliott, J.M., etc., et al
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By Olsen, Lars-Henrik, Sunesen, Jakob, Pedersen, Bente Vita
By Cafiero, Gaetano, Jahoda, Maddalena, Curtsinger, Bill, Nicklin, Flip