APA-ийн эшлэл(7 дахь хэвлэлт)

Preston, C. J. (2003). Grounding knowledge: Environmental philosophy, epistemology, and place. University of Georgia Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Preston, Christopher J. Grounding Knowledge: Environmental Philosophy, Epistemology, and Place. Athens: University of Georgia Press, 2003.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Preston, Christopher J. Grounding Knowledge: Environmental Philosophy, Epistemology, and Place. University of Georgia Press, 2003.