Cita APA (7a ed.)

Harding, W. R. 1. (1967). The days of Henry Thoreau. Knopf, Alfred A..

Cita Chicago Style (17a ed.)

Harding, Walter Roy 1917. The Days of Henry Thoreau. New York: Knopf, Alfred A., 1967.

Cita MLA (9a ed.)

Harding, Walter Roy 1917. The Days of Henry Thoreau. Knopf, Alfred A., 1967.