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Vagrancy : a limited study of vagrants in the metropolitan area of Cape Town
(1974)
Tramps and reformers, 1873-1916 : the discovery of unemployment in New York
Ringenbach, Paul T., (1973)
Tramping with Tramps von Josiah Flynt (Willard) von Lili du Bois-Reymond : [dtsch] ; Auf der Fahrt mit Landstreichern. Aus d. Engl.
Flynt, Josiah, (1904)
Restriction of output by machine operators in a piecework machine shop : a preliminary analysis
Roy, Donald Francis, (1952)