Gaya APA

Espinosa, C, S. (1966). Problematic of the Spiritual Exercises today, the results of an international enquiry, pro manuscripto. . Roma: Borgo SSpirito 5.

Gaya MLA

Espinosa, C.,, S.J.. "Problematic of the Spiritual Exercises today, the results of an international enquiry, pro manuscripto. ". Roma: Borgo SSpirito 5, 1966. Buku.