Lua APA (7ú heag.)
Widick, R. (2009). Trouble in the forest: California's redwood timber wars. University of Minnesota Press.
Lua i Stíl Chicago (17ú heag.)
Widick, Richard. Trouble in the Forest: California's Redwood Timber Wars. Minneapolis: University of Minnesota Press, 2009.
Lua MLA (9ú heag.)
Widick, Richard. Trouble in the Forest: California's Redwood Timber Wars. University of Minnesota Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.