Gaya APA

Callahan, F, J, G. (). The centralization of government in Pontifical Institutes of women with simple vows, from their beginnings till the legislation of Leo XIII. . Roma: 1948.

Gaya MLA

Callahan, Francis, J.,, G.J.. "The centralization of government in Pontifical Institutes of women with simple vows, from their beginnings till the legislation of Leo XIII. ". Roma: 1948, . Buku.