Cita APA (7a ed.)

Thoreau, H. D., & Langmack, F. (1965). Walden: Civil disobedience. Airmont.

Cita Chicago Style (17a ed.)

Thoreau, Henry David, y Frederic Langmack. Walden: Civil Disobedience. New York: Airmont, 1965.

Cita MLA (9a ed.)

Thoreau, Henry David, y Frederic Langmack. Walden: Civil Disobedience. Airmont, 1965.