APA (7th ed.) Citation

Harding, W. (1982). The Days of Henry Thoreau: A Biography. Princeton University Press.

Chicago Style (17th ed.) Citation

Harding, Walter. The Days of Henry Thoreau: A Biography. Princeton, N.J.: Princeton University Press, 1982.

MLA (8th ed.) Citation

Harding, Walter. The Days of Henry Thoreau: A Biography. Princeton University Press, 1982.