APA-ийн эшлэл(7 дахь хэвлэлт)

Walls, L. D. (1995). Seeing new worlds: Henry David Thoreau and nineteenth-century natural science. University of Wisconsin Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Walls, Laura Dassow. Seeing New Worlds: Henry David Thoreau and Nineteenth-century Natural Science. Madison, WI: University of Wisconsin Press, 1995.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Walls, Laura Dassow. Seeing New Worlds: Henry David Thoreau and Nineteenth-century Natural Science. University of Wisconsin Press, 1995.