Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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