山峰。1903年,首次有人成功登頂烏什巴山。 Irving, R. L. G., Ten Great Mountains (London, J. M. Dent & Sons, 1940) The climbing history up to 1939 of Ushba, Snowdon, Ben Nevis
English Pronunciation Dictionary. Everyman's Reference Library 14. London: J. M. Dent & Sons. 1977 [1917]. ISBN 0-460-03029-9. Bosman, D. B.; Van der Merwe
Introduction for the edition of Thomas Love Peacock's novels published by J. M. Dent & Co. in 1891 Thomas Love Peacock and Nicholas A. Joukovsky The Letters