Cita APA (7th ed.)
Sowell, T. (2007). A man of letters. Encounter Books.
Cita Chicago (17th ed.)
Sowell, Thomas. A Man of Letters. New York: Encounter Books, 2007.
Cita MLA (9th ed.)
Sowell, Thomas. A Man of Letters. Encounter Books, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.