Cita APA (7a ed.)

Sertillanges, A., & Ryan, M. P. (1998). The Intellectual Life. Catholic University of America Press.

Cita Chicago Style (17a ed.)

Sertillanges, A.-D., y Mary Perkins Ryan. The Intellectual Life. Washington, D.C.: Catholic University of America Press, 1998.

Cita MLA (8a ed.)

Sertillanges, A.-D., y Mary Perkins Ryan. The Intellectual Life. Catholic University of America Press, 1998.