Columbia subject headings:
Industrial hygiene--Law and legislation--United States.
Industrial safety--Law and legislation--United States.
Small business--Law and legislation--United States.
Harvard subject headings:
Industrial hygiene--Law and legislation--United States
Industrial safety--Law and legislation--United States
Small business--Law and legislation--United States
United States. Occupational Safety and Health Act of 1970.
Princeton subject headings:
Industrial hygiene--Law and legislation--United States.
Industrial safety--Law and legislation--United States.
Small business--Law and legislation--United States.