• publisher: New York city, Teachers college, Columbia university
  • creator: Russell, Charles, 1893-1957
  • Keyword: Teachers.
  • years: 1922.
  • pages: 3 p. l., 139 p.
  • class: LB1731
  • notes: Published also as thesis (PH. D.) Columbia university, 1922.
  • download: pdf file