APA (7th ed.) Citation

Harding, W. R. (1982). The days of Henry Thoreau: A biography ([2nd ed.].). Dover Publications.

Chicago Style (17th ed.) Citation

Harding, Walter Roy. The Days of Henry Thoreau: A Biography. [2nd ed.]. New York: Dover Publications, 1982.

MLA (9th ed.) Citation

Harding, Walter Roy. The Days of Henry Thoreau: A Biography. [2nd ed.]. Dover Publications, 1982.