Columbia subject headings:
Harvard subject headings:
Industrial relations--Congresses
Labor--Congresses
Working class--Congresses
Princeton subject headings:
Conference on Labor, New York University. Proceedings of New York University Annual Conference on Labor--Indexes.
Industrial relations--United States--Indexes.
Labor laws and legislation--United States--Indexes.
New York University Annual National Conference on Labor. Proceedings of New York University Annual National Conference on Labor--Indexes.