By Charles Heatwole, Heatwole, Charles
By Hutchinson, Scott
By Apt, Jay, etc.
By National Geographic Society
By Reader, John, Lewis, Michael
By Mike Featherstone, Scott Lash, Roland Robertson
By Bryan, C.D.B.
By Harbeson, John W
By Anderson, Sheldon
By John Miller, Ashley Montagu
By McCormack, Derek P.
By Geographers' A-Z Map Company
By Lines, C.J., Bolwell, L.H.
By Knowles, Professor Richard
By Leslie Dunkling
By Ramsden, Eileen, Lee, R.E.
By Sauvain, Philip
By Michael Raw
By Raw, Michael
By Ferretti, Jane, Greasley, Brian
By Steve Cooper
By Warn, Sue
By Sue Warn, Warn, Sue