Cita APA (7th ed.)
Plantinga, A. C. (1974). God, freedom, and evil. Eerdmans.
Cita Chicago (17th ed.)
Plantinga, Alvin C. God, Freedom, and Evil. Grand Rapids: Eerdmans, 1974.
Cita MLA (9th ed.)
Plantinga, Alvin C. God, Freedom, and Evil. Eerdmans, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.