• publisher: New York city, Dept. of education, Russell Sage foundation
  • creator: Ayres, Leonard Porter, 1879-1946
  • Keyword: Public schools United States. Education United States Statistics.
  • years: c1920.
  • pages: 70 p.
  • class: LA216
  • notes: Lettered on cover: Russell Sage foundation. Education monographs.
  • download: pdf file