Cita APA (7th ed.)
Willard, S. (2007). Harm. University of California Press.
Cita Chicago (17th ed.)
Willard, Steve. Harm. Berkeley: University of California Press, 2007.
Cita MLA (9th ed.)
Willard, Steve. Harm. University of California Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.