Cita APA (7th ed.)
O'Brien, D. M. (2010). Congress shall make no law: The First Amendment, unprotected expression, and the Supreme Court. Rowman & Littlefield Publishers.
Cita Chicago (17th ed.)
O'Brien, David M. Congress Shall Make No Law: The First Amendment, Unprotected Expression, and the Supreme Court. Lanham, Md.: Rowman & Littlefield Publishers, 2010.
Cita MLA (9th ed.)
O'Brien, David M. Congress Shall Make No Law: The First Amendment, Unprotected Expression, and the Supreme Court. Rowman & Littlefield Publishers, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.