Cita APA (7a ed.)

Thoreau, H. D., & Willey, B. (1968). Walden. Dent [etc.].

Cita Chicago Style (17a ed.)

Thoreau, Henry David, y Basil Willey. Walden. London [etc.]: Dent [etc.], 1968.

Cita MLA (9a ed.)

Thoreau, Henry David, y Basil Willey. Walden. Dent [etc.], 1968.