By Little, Kate
By Adrienne Jack, Jack, Adrienne
By Quick, Harriet, Headlam, Catherine (ed.).
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By Encyclopaedia Britannica
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By Tatchell, J, Robson, Kirsteen
By Miles Kelly
By Ben Denne, Denne, Ben
By Crofton, Ian
By Rowen, Beth, Slepian, Curtis
By Ayto, John
By Paton, John, Dell, Catherine
By philip-wilkinson-douglas-charing, Philip Wilkinson, Douglas Charing
By Isaacs, Alan
By Burnie, David
By Green, Dr Jen, Macdonald, Fiona, Steele, Philip, Stotter, Michael
By Knapp, Brian
By National Geographic
By Steele, Philip
By Langley, Andrew, OUP
By Dowswell, Paul
By Balicevic, Didier, Baumann, Anne-Sophie
By Firth, Lesley
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