Packard, H. S., & Butler, W. H. St. Paul's Cathedral, Pittsburgh, Pennsylvania. Philadelphia: Packard & Butler.
Chicago Style (17th ed.) CitationPackard, Herbert S., and William H. Butler. St. Paul's Cathedral, Pittsburgh, Pennsylvania. Philadelphia: Packard & Butler.
MLA (8th ed.) CitationPackard, Herbert S., and William H. Butler. St. Paul's Cathedral, Pittsburgh, Pennsylvania. Philadelphia: Packard & Butler.
Warning: These citations may not always be 100% accurate.