RŌDŌ kagaku (1924-1994) [electronic resource] = The Journal of science of labour (1924-1994).
Nippon Rōdō Kagaku Konkyūjo, Tokyo.
Nippon Sangyō Eisei Kyōkai.
Rōdō Igaku Shinrigaku Kenkyūsho, Tokyo.
Kawasaki : Rōdō Kagaku Kenkyusho,
1994.
Vol. 70, no. 12 (1994) published in floppy disk format.
Special issue to celebrate 70 years of the journal.
Official organ of Nippon Sangyo Eisei Kyokai, 1952-58.
Working class