Thorson, R. M. (2014). Walden's shore: Henry David Thoreau and nineteenth-century science. Harvard University Press.

Thorson, Robert M. Walden's Shore: Henry David Thoreau and Nineteenth-century Science. Cambridge, Massachusetts ; London, England: Harvard University Press, 2014.

Thorson, Robert M. Walden's Shore: Henry David Thoreau and Nineteenth-century Science. Harvard University Press, 2014.