APA (7th ed.) Citation

Ray, R. B. (2012). Walden x 40: Essays on Thoreau. Indiana University Press.

Chicago Style (17th ed.) Citation

Ray, Robert B. Walden X 40: Essays on Thoreau. Bloomington: Indiana University Press, 2012.

MLA (9th ed.) Citation

Ray, Robert B. Walden X 40: Essays on Thoreau. Indiana University Press, 2012.