Gaya APA

Vella, A, G, , (. (1995). The spiritual exercises: Option for the poor, a modern way of freedom, evangelizing the big cities, experience and commitment. . Roma: Roma Secretariatus Spiritualitatis Ignatianae (SSI).

Gaya MLA

Vella, Arthur, G., , (ed.). "The spiritual exercises: Option for the poor, a modern way of freedom, evangelizing the big cities, experience and commitment. ". Roma: Roma Secretariatus Spiritualitatis Ignatianae (SSI), 1995. Buku.