Lua APA (7ú heag.)

Thybony Scot & Chesley, P. The rockies: Pillars of a continent. D.C..

Lua i Stíl Chicago (17ú heag.)

Thybony Scot agus Paul Chesley. The Rockies: Pillars of a Continent. Washington: D.C..

Lua MLA (9ú heag.)

Thybony Scot agus Paul Chesley. The Rockies: Pillars of a Continent. D.C..

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.