Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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