Gaya APA

Driscoll, M. (1990). A silent herald of unity, the life of blessed Maria Gabriella Sagheddu. . Michigan: Cistercian Publications Kalamazoo.

Gaya MLA

Driscoll, Martha. "A silent herald of unity, the life of blessed Maria Gabriella Sagheddu. ". Michigan: Cistercian Publications Kalamazoo, 1990. Buku.