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The negro in the lumber industry
Howard, John C., (1970)
Determining forces in collective wage bargaining
Levinson, Harold Myer, (1966)
An economic analysis on income determination for production workers in Oregonʹs wood products industry : a human capital approach
Ervin, David Eugene, (1975)
Annual earnings in the iron and steel industry, 1937
Baril, Victor S., (1940)