Dugan, V. (1979). A history of the Cathedral Basilica of Saints Peter and Paul. s.n.].
Chicago Style (17. basım) AtıfDugan, Virginia. A History of the Cathedral Basilica of Saints Peter and Paul. [S.l.: s.n.], 1979.
MLA (8th ed.) AtıfDugan, Virginia. A History of the Cathedral Basilica of Saints Peter and Paul. s.n.], 1979.
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