Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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