By Yvonne Nolan
By Jeanne Rose
By Durband, Alan
By McConnell, Steven C.
By McConnell, Steve C.
By Craig Larman, Bas Vodde
By Brighouse, Alan, etc.
By BBC
By Maddy Barnes
By Andrew Brodie
By McConkey, Stephen
By CGP Books
By Elkin, Susan
By Various
By Head, Alison
By Curran, Stephen C., Stephen C. Curran
By Nick Rozanski, Eoin Woods
By Margaret Gronow
By Stephen McConkey, Tom Maltman
By Brodie, Andrew
By Graham Park
By Lindsay, Sarah
By Stephen C. Curran, Andrea F. Richardson, Warren J. Vokes
By David Vaughan (Research Professor of Mineralogy, University of Manchester)
By Byrd, Greg, Bryd, Lynn