Leonard Porter Ayres

The Economics of Recovery

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres The Economics of Recovery

Health Work in the Public Schools

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres Health Work in the Public Schools

Essays

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres Essays

School Buildings and Equipment, Issue 9

May Ayres Burgess

Ausverkauft

May Ayres Burgess School Buildings and Equipment, Issue 9

The Cleveland School Survey: Summary Volume, Issue 16

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres The Cleveland School Survey: Summary Volume, Issue 16

The Great Events of the Great War; a Comprehensive and Readable Source Record of the World's Great War, Emphasizing the More Important Events, and Pre

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres The Great Events of the Great War; a Comprehensive and Readable Source Record of the World's Great War, Emphasizing the More Important Events, and Pre

The Public Library And The Public Schools

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres The Public Library And The Public Schools

Laggards In Our Schools

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres Laggards In Our Schools

The Relation Between Entering Age and Subsequent Progress Among School Children ..

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres The Relation Between Entering Age and Subsequent Progress Among School Children ..

The Money Cost of Repetition Versus the Money Saving Through Acceleration

Leonard Porter Ayres

Ausverkauft

Leonard Porter Ayres The Money Cost of Repetition Versus the Money Saving Through Acceleration