An introduction to labor / Clyde E. Dankert. Dankert, Clyde E. Working class. Working class United States. HD4901 .D25 331 DAI Bibliographical footnotes. New York : Prentice-Hall, 1954. 1954. 1954 Text 605 p. ; eng Prentice-Hall industrial relations and personnel series Prentice-Hall industrial relations and personnel series. United States.