Columbia subject headings:
Harvard subject headings:
Japan--Politics and government--1926-1945--Periodicals.
Labor movement--Japan--Periodicals.
Labor--Japan--Periodicals.
Socialism--Japan--Periodicals
Working class--Japan--Periodicals
Princeton subject headings:
Facsimiles.
Labor unions--Japan--Periodicals.
Periodicals.
Working class--Japan--Periodicals.