• publisher: Govt. print. off.
  • creator: Benton MacKaye , United States Dept . of Labor, United States Forest Service
  • contributor: Harvard University
  • mediatype: texts
  • years: 1919
  • pages: 177
  • language: English
  • lccn: 19026866
  • notes: At head of title: Department of Labor. Office of the Secretary.
  • download: pdf file