APA

Sertillanges A. G., Ryan M., . (1948). The intellectual life: its spirit, conditions, methods. Westminster: Newman Press.

Chicago

Sertillanges Antonin Gilbert, Ryan Mary, . 1948. The intellectual life: its spirit, conditions, methods. Westminster: Newman Press.

Harvard

Sertillanges A. G., Ryan M., . (1948). The intellectual life: its spirit, conditions, methods. Westminster: Newman Press.

MLA

Sertillanges Antonin Gilbert, Ryan Mary, . The intellectual life: its spirit, conditions, methods. Westminster: Newman Press. 1948.