Columbia subject headings:
Harvard subject headings:
Collective bargaining--Railroads--United States--Case studies.
Collective labor agreements--Railroads--United States--Case studies.
Labor disputes--United States--Case studies.
Princeton subject headings:
Case studies.
Collective bargaining--Railroads--United States--Case studies.
Collective labor agreements--Railroads--United States--Case studies.
Labor disputes--United States--Case studies.