Lua APA (7ú heag.)
Harvey, M. W. T. (2000). A symbol of wilderness: Echo Park and the American conservation movement. University of Washington Press.
Lua i Stíl Chicago (17ú heag.)
Harvey, Mark W. T. A Symbol of Wilderness: Echo Park and the American Conservation Movement. Seattle: University of Washington Press, 2000.
Lua MLA (9ú heag.)
Harvey, Mark W. T. A Symbol of Wilderness: Echo Park and the American Conservation Movement. University of Washington Press, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.