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More by Leonard Porter Ayres
The Cleveland School Survey: Summary Volume
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Some Conditions Affecting Problems of Industrial Education in 78 American School Systems: Volume 135
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The Prospects for Building Construction in American Cities
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An Index Number for State School Systems: Volume 141
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The Public Schools of Springfield, Illinois
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Child Accounting in the Public Schools: Volume 3
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Laggards in Our Schools: A Study of Retardation and Elimination in City School Systems
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A Shorter Method for Computing Coefficients of Correlation and of Regression and the Correlation Ratio
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Child Accounting in the Public Schools
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The Relation of Physical Defects to School Progress: Issues 61-138
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The Nature and Status of Business Research: An Address Delivered at the Eighty-third Annual Meeting of the American Statistical Association at Pittsburgh, Pa., December, 1921
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The Cleveland Survey of the Administration of Criminal Justice
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School Organization and Administration
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An Index Number for State School Systems: Volume 141
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Essays
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School Organization and Administration: Volume 24
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Open-air Schools
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Seven Great Foundations
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Open-air Schools
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Laggards in Our Schools: A Study of Retardation and Elimination in City School Systems
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