It is the world's largest single piece of limestone, and occupies an area of about 200,000 square kilometres (77,000 sq mi). At its widest point, it stretches about 1,100 kilometres (684 mi) from east to west between South Australia (SA) and Western Australia (WA). The name comes from the Latin words meaning "no trees".
- Bolam, A. G. (Anthony Gladstone), 1893–1966. The trans-Australian wonderland Melbourne : Modern Printing, (many editions in the early 20th century)
- Edmonds, Jack (1976) Nullarbor crossing : with panorama photographs by Brian Gordon. Perth. West Australian Newspapers, Periodicals Division. ISBN 0-909699-09-7
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