Cornwell, P. (1993). Cruel and unusual. Avon Books.
Cita Chicago (17th ed.)Cornwell, Patricia. Cruel and Unusual. New York: Avon Books, 1993.
Cita MLA (9th ed.)Cornwell, Patricia. Cruel and Unusual. Avon Books, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.