Pennsylvania. Bureau of Statistics and Information. (1947). Eleventh industrial directory of the Commonwealth of Pennsylvania. [publisher not identified].
Chicago Style (17th ed.) CitationPennsylvania. Bureau of Statistics and Information. Eleventh Industrial Directory of the Commonwealth of Pennsylvania. Harrisburg: [publisher not identified], 1947.
MLA (9th ed.) CitationPennsylvania. Bureau of Statistics and Information. Eleventh Industrial Directory of the Commonwealth of Pennsylvania. [publisher not identified], 1947.
Warning: These citations may not always be 100% accurate.