The labor problem in the United States / E. E. Cummins...and Frank T. De Vyver. Cummins, E. E. De Vyver, Frank Traver, 1904- ed. Labor and laboring classes United States. HD8066 .C8 1947 331.9 CUL includes index. Bibliographical foot-notes. New York : D. Van Nostrand Company, inc., 1947. 1947. 1947 Text xiv, 587p. ;p eng United States.