Cita APA (7a ed.)

Thoreau, H. D. (1995). Civil disobedience. Penguin books.

Cita Chicago Style (17a ed.)

Thoreau, Henry David. Civil Disobedience. New York [etc.]: Penguin books, 1995.

Cita MLA (9a ed.)

Thoreau, Henry David. Civil Disobedience. Penguin books, 1995.