Florence, P. Sargant (Philip Sargant), 1890. Use of factory statistics in the investigation of industrial fatigue: a manual for field research. New York: [s.n.]. 1918; Labor Law; 156 p.: ill. 25 cm.
Florence, P. Sargant (Philip Sargant), 1890. Use of factory statistics in the investigation of industrial fatigue: a manual for field research. New York: [s.n.]. 1918; Labor Law; 156 p.: ill. 25 cm.
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