Citazione Stile APA (7a Edizione)

Maritain, J. (1948). A preface to metaphysics. Sheed and Ward.

Citazione stile Chigago Style (17a edizione)

Maritain, Jacques. A Preface to Metaphysics. Nueva York: Sheed and Ward, 1948.

Citatione MLA (9a ed.)

Maritain, Jacques. A Preface to Metaphysics. Sheed and Ward, 1948.