Fardon, D. F. (1983). Stop the pain. Prentice Hall.
Cita Chicago (17th ed.)Fardon, David F. Stop the Pain. Prentice Hall, 1983.
Cita MLA (9th ed.)Fardon, David F. Stop the Pain. Prentice Hall, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.