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- 49009244 contributor B1155079.
- 49009244 created "1949.".
- 49009244 date "1949".
- 49009244 date "1949.".
- 49009244 dateCopyrighted "1949.".
- 49009244 description "Bibliography: p. 75-76.".
- 49009244 extent "76 p.".
- 49009244 issued "1949".
- 49009244 issued "1949.".
- 49009244 language "eng".
- 49009244 publisher "New York, Bureau of Publications, Teachers College, Columbia Univ.,".
- 49009244 subject "372.7".
- 49009244 subject "Arithmetic Study and teaching.".
- 49009244 subject "Division.".
- 49009244 subject "QA135 .F8 1949".
- 49009244 title "An experimental study of two methods of long division.".
- 49009244 type "text".