Columbia subject headings:
Service industries--United States--Statistical services.
Service industries--United States--Statistics--Bibliography--Catalogs.
Service industries--United States--Statistics.
United States. Bureau of the Census--Catalogs.
United States. Bureau of the Census.
Harvard subject headings:
Service industries--United States--Statistical services.
Service industries--United States--Statistics--Bibliography--Catalogs.
United States. Bureau of the Census
United States. Bureau of the Census--Catalogs.
Princeton subject headings:
Catalogs.
Service industries--United States--Statistical services.
Service industries--United States--Statistics--Bibliography--Catalogs.
United States. Bureau of the Census
United States. Bureau of the Census--Catalogs.