Cita APA (7th ed.)

Sertillanges, A. G., & Ryan, M. (1948). The intellectual life, its spirit, conditions, methods (2nd ed.). Mercier Press.

Cita Chicago (17th ed.)

Sertillanges, Antonin Gilbert, i Mary Ryan. The Intellectual Life, Its Spirit, Conditions, Methods. 2nd ed. Cork: Mercier Press, 1948.

Cita MLA (9th ed.)

Sertillanges, Antonin Gilbert, i Mary Ryan. The Intellectual Life, Its Spirit, Conditions, Methods. 2nd ed. Mercier Press, 1948.