Packard, H. S., & Butler, W. H. Interior of St. Philomeras Church, Pittsburgh, Pennsylvania. Philadelphia: Packard & Butler.
Chicago Style (17. basım) AtıfPackard, Herbert S., ve William H. Butler. Interior of St. Philomeras Church, Pittsburgh, Pennsylvania. Philadelphia: Packard & Butler.
MLA (8th ed.) AtıfPackard, Herbert S., ve William H. Butler. Interior of St. Philomeras Church, Pittsburgh, Pennsylvania. Philadelphia: Packard & Butler.
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