Dugan, V. (1979). A history of the Cathedral Basilica of Saints Peter and Paul. s.n.].
Chicago Style aipamenaDugan, Virginia. A History of the Cathedral Basilica of Saints Peter and Paul. [S.l.: s.n.], 1979.
MLA aipamenaDugan, Virginia. A History of the Cathedral Basilica of Saints Peter and Paul. s.n.], 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.