Columbia subject headings:
Mineral industries--Statistics.
Mines and mineral resources--United States.
Quarries and quarrying--United States.
Harvard subject headings:
Mineral industries--Statistics.
Mineral industries--United States--Statistics.
Mines and mineral resources--United States
Mines and mineral resources--United States--Statistics.
Petroleum industry and trade--United States--Statistics
Quarries and quarrying--United States--Statistics.
Quarries and quarrying--United States.
Princeton subject headings:
Metals--Statistics.
Mineral industries--United States--Statistics.
Mines and mineral resources--United States--Statistics.
Quarries and quarrying--United States--Statistics.
United States--Census, 1900.