Orth, Samuel Peter. The armies of labor : a chronicle of the organized wage-earners / Samuel Peter Orth. - New Haven : Yale University Press, c 1919. - 297 p. ; 18 cm. - Chronicles of America series. . Includes index. Bibliography : p. 261-264 346 346 Subjects--Topical Terms: Labor and laboring classes. Dewey Class. No.: 331.2 / O8a