Columbia subject headings:
Industrial relations--Case studies.
Industrial relations--United States--Case studies.
Industrial relations--United States.
Industrial relations.
Harvard subject headings:
Industrial relations--Case studies
Industrial relations--United States
Industrial relations--United States--Case studies
Industrial relations.
Princeton subject headings:
Case studies.
Industrial relations--Case studies.
Industrial relations--United States--Case studies.
Industrial relations--United States.
Industrial relations.