The Royal Geographical Society History of World Exploration. J. Keay (general editor). 1991. London, Hamlyn. 320 p, illustrated, hard cover. ISBN 0600 56819 9. £20.00

1991 Polar Record  
doi:10.1017/s0032247400013280 fatcat:vtwg6bpvofc5hfjtjepmuo2qcm