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Staff status for manual workers
Robinson, Terry, (1972)
Coolies and mandarins : China's protection of overseas Chinese during the late Ch'ing period (1851 - 1911)
Yen, Ching-Hwang, (1985)
Occupational status and health transitions
Morefield, G. Brant, (2011)
Study of benefits for survivors of UAW members in Detroit areas
Loren, Eugene L., (1969)