Cita APA (7th ed.)
Peretti, F. E. (1986). This present darkness (ed.). Crossway Books.
Cita Chicago (17th ed.)
Peretti, Frank E. This Present Darkness. ed. Illinois: Crossway Books, 1986.
Cita MLA (9th ed.)
Peretti, Frank E. This Present Darkness. ed. Crossway Books, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.