Williamson, Thames, 1894-1961. text Boston, D. C. Heath [c1925] eng Bibliography: p. 545-557. Social problems. United States--Politics and government. United States--Economic conditions--1918-1945. United States--Social conditions. Also available in digital form. http://hdl.loc.gov/loc.gdc/scd0001.00340765667 No known restrictions; no copyright renewal found, Feb 25 2020