Cita APA (7th ed.)

Plantinga, A. (1974). The nature of necessity (1a. ed.). Oxford University Press.

Cita Chicago (17th ed.)

Plantinga, Alvin. The Nature of Necessity. 1a. ed. Nueva York: Oxford University Press, 1974.

Cita MLA (9th ed.)

Plantinga, Alvin. The Nature of Necessity. 1a. ed. Oxford University Press, 1974.