Columbia subject headings:
International Labour Conference (1st : 1919 : Washington, D.C.)
International Labour Conference (2nd : 1920 : Genoa, Italy)
International Labour Office.
International Labour Organisation.
Labor laws and legislation.
Harvard subject headings:
International Labour Conference (1st : 1919 : Washington, D.C.)
International Labour Conference (2nd : 1920 : Genoa, Italy)
International Labour Office
International Labour Organisation
Labor laws and legislation
Princeton subject headings:
International Labour Conference (2nd : 1920 : Genoa, Italy)
International Labour Conference 1st, Washington, D.C., 1919.
International Labour Office.
International Labour Organisation.
Labor laws and legislation.