APA

Sertillanges A. G., . (1954). Spirituality. New York: McMullen Books, Inc.

Chicago

Sertillanges Antonin Gilbert, . 1954. Spirituality. New York: McMullen Books, Inc.

Harvard

Sertillanges A. G., . (1954). Spirituality. New York: McMullen Books, Inc.

MLA

Sertillanges Antonin Gilbert, . Spirituality. New York: McMullen Books, Inc. 1954.