JN!h%;/:$',.;0"'Air Base,” Our Airports, (2010) at < http://www.ourairports.com/airports/CN-0132// > [accessed 15 June 2010]; and J��N!["#?F\1'+$%'
C#H1'@ited with “caves built into hills” at “����—— ������������“51” [New airport — Asia's largest military airport, China's "area 51”],” op cit;
map from: “Zhangye Southeast Air Base,” Our Airports, (2010) at < http://www.ourairports.com/airports/CN-0143/ > [accessed 15 June 2010].
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