Columbia subject headings:
Industrial hygiene--Management--Case studies.
Industrial hygiene--United States--Management--Case studies.
Industrial safety--Management--Case studies.
Industrial safety--United States--Management--Case studies.
Harvard subject headings:
Industrial hygiene--Case studies.
Industrial hygiene--United States--Management.
Industrial safety--Case studies.
Industrial safety--United States--Management.
Princeton subject headings:
Industrial hygiene--Management--Case studies.
Industrial hygiene--United States--Management--Case studies.
Industrial safety--United States--Management--Case studies.
Industrial safety--management--Case studies.