Thybony Scot & Chesley, P. The rockies: Pillars of a continent. D.C..
Chicagoスタイル(17版)引用形式Thybony Scot , Paul Chesley. The Rockies: Pillars of a Continent. Washington: D.C..
MLA(9版)引用形式Thybony Scot , Paul Chesley. The Rockies: Pillars of a Continent. D.C..
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