Cita APA (7th ed.)
Block, P. (1994). Darkening of the light. Bantam Books.
Cita Chicago (17th ed.)
Block, Paul. Darkening of the Light. New York: Bantam Books, 1994.
Cita MLA (9th ed.)
Block, Paul. Darkening of the Light. Bantam Books, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.