• publisher: Govt. Print. Off.
  • creator: Leifur Magnusson
  • contributor: Harvard University
  • mediatype: texts
  • years: 1920
  • pages: 374
  • language: English
  • notes: At head of title: U.S. Department of Labor, W.B. Wilson, Secretary. Bureau of Labor Statistics. Ethelbert Stewart, Commissioner.
  • download: pdf file