Columbia subject headings:
Industries--Virginia--Statistics--Periodicals.
Labor--Virginia--Statistics--Periodicals.
Virginia--Economic conditions--Statistics--Periodicals.
Harvard subject headings:
Industries--Virginia--Periodicals.
Virginia. Bureau of Labor and Industry--Periodicals.
Working class--Virginia--Periodicals.
Princeton subject headings:
Industries--Virginia--Periodicals.
Labor--Virginia--Periodicals.
Virginia. Bureau of Labor and Industry--Periodicals.