Warner, W. Lloyd 1898-1970. Occupational mobility in American business and industry, 1928-1952 / by W.L.Warner and J.C.Abegglen. - Minneapolis : Minnesota U.P., 1955. - 315 P. 24 cm. Subjects--Topical Terms: Occupational mobility.Executives--United States. Dewey Class. No.: 658 / WAO 1955