Lua APA (7ú heag.)
Preston, C. J. (2003). Grounding knowledge: Environmental philosophy, epistemology, and place. University of Georgia Press.
Lua i Stíl Chicago (17ú heag.)
Preston, Christopher J. Grounding Knowledge: Environmental Philosophy, Epistemology, and Place. Athens: University of Georgia Press, 2003.
Lua MLA (9ú heag.)
Preston, Christopher J. Grounding Knowledge: Environmental Philosophy, Epistemology, and Place. University of Georgia Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.