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Labor problems
Furniss, Edgar Stevenson, (1969)
The role of the arbitrator in industrial wage disputes
Guillebaud, b. 1890, (1970)
American wage arbitration, 1950-74
Hall, Gary A., (1976)
Modern Economics
Pen, Jan, (1965)
Income distribution
Pen, Jan, (1971)
Unemployment as a mystery
Pen, Jan, (1992)