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Lua i Stíl Chicago (17ú heag.)ebrary, Inc, agus Tarla Rai Peterson. Green Talk in the White House: The Rhetorical Presidency Encounters Ecology. College Station: Texas A&M University Press, 2004.
Lua MLA (9ú heag.)ebrary, Inc, agus Tarla Rai Peterson. Green Talk in the White House: The Rhetorical Presidency Encounters Ecology. Texas A&M University Press, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.