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- 57004422 contributor B1355817.
- 57004422 created "1957.".
- 57004422 date "1957".
- 57004422 date "1957.".
- 57004422 dateCopyrighted "1957.".
- 57004422 description "Bibliography: p. 45.".
- 57004422 extent "viii, 45 p. ;".
- 57004422 isPartOf "Educational research monographs (Catholic University of America) ; v. 20, no. 7.".
- 57004422 isPartOf "Educational research monographs ; v. 20, no. 7".
- 57004422 issued "1957".
- 57004422 issued "1957.".
- 57004422 language "eng".
- 57004422 publisher "Washington, D.C. : Catholic University of America Press,".
- 57004422 subject "Arithmetic Study and teaching.".
- 57004422 subject "Factor analysis.".
- 57004422 subject "QA135 .E3 1957".
- 57004422 title "Factorial comparison of arithmetic performance of girls and boys in the sixth grade / by Roberta Miller Edwards.".
- 57004422 type "text".