Title: Visual information on problems of the wage earner : a guide to exhibits, motion pictures, slides, posters and charts available from the United States Department of Labor /
Authors: United States.
Publisher: U.S. G.P.O. : For sale by the Supt. of Docs.,
Year: 1941
Subjects: Working class United States Exhibitions.; Working class Study and teaching United States Audio-visual aids Catalogs.; Labor United States Exhibitions.; Labor Study and teaching United States Audio-visual aids Catalogs.