Columbia subject headings:
Factory and trade waste--United States--Statistics.
Hazardous wastes--United States--Statistics.
Industries--Environmental aspects--United States.
Pollution prevention--United States--Statistics.
Pollution--United States--Statistics.
Harvard subject headings:
Factory and trade waste--United States--Statistics.
Hazardous wastes--United States--Statistics.
Industrial statistics--Environmental aspects--United States.
Industries--Environmental aspects--United States--Statistics.
Pollution prevention--United States--Statistics.
Pollution--United States--Statistics.
Princeton subject headings:
Factory and trade waste--United States--Statistics.
Hazardous wastes--United States--Statistics.
Industries--Environmental aspects--United States--Statistics.
Pollution prevention--United States--Statistics.
Pollution--United States--Statistics.
Statistics.