Beckman, R. O. How to train supervisors : manual and outlines for determinate discussion / R. O. Beckman. - 4th rev. ed. - New York: Harper, [1952]. - xiii, 335 p. : ill. ; 24 cm. Includes bibliography and index. Subjects--Topical Terms: Employees--Training ofSupervisors, Industrial Dewey Class. No.: 658.3124