) (2004) "Royal Geographical Society with the Institute of British Geographers expedition handbook", New ed., London : Profile, ISBN 1-86197-044-7==External links==*Royal Geographical Society (with IBG) : the heart of geography*Royal Geographical Society Picture Library – Images of travel & exploration
) (2004) "Royal Geographical Society with the Institute of British Geographers expedition handbook", New ed., London : Profile, ISBN 1-86197-044-7* Royal Geographical Society* Royal Geographical Society Picture Library* The official Royal Geographical Society print website