Columbia subject headings:
Industries--United States--Classification.
Manufactures--Classification.
Mineral industries--Classification.
Mineral industries--United States--Classification.
Harvard subject headings:
Manufactures--Classification--Handbooks, manuals, etc.
Manufactures--United States--Classification--Handbooks, manuals, etc.
Manufacturing industries--United States--Classification.
Mineral industries--Classification--Handbooks, manuals, etc.
Mineral industries--United States--Classification--Handbooks, manuals, etc.
Mineral industries--United States--Classification.
United States--Census, 1997--Handbooks, manuals, etc.
United States. Bureau of the Census--Handbooks, manuals, etc.
Princeton subject headings:
Manufactures--United States--Classification--Handbooks, manuals, etc.
Mineral industries--United States--Classification--Handbooks, manuals, etc.
United States--Census, 1997--Handbooks, manuals, etc.
United States. Bureau of the Census--Handbooks, manuals, etc.