Leonard Porter Ayres

Health Work in the Public Schools

Leonard Porter Ayres

$9.63 - $29.95

The Prospects for Building Construction in American Cities

Leonard Porter Ayres

$26.95

The Public Library And The Public Schools...

Leonard Porter Ayres

$30.95

The Automobile Industry And Its Future...

Leonard Porter Ayres

$13.69

The Effect Of Promotion Rates On School Efficiency

Leonard Porter Ayres

Out of Stock

The Cleveland survey of the administration of criminal justice [electronic resource]: an address delivered before the City Club of Cleveland, February 18, 1922

Leonard Porter Ayres

$13.69

Business Recovery Following Depression...

Leonard Porter Ayres

$13.69

School Buildings and Equipment, Issue 9

Leonard Porter Ayres

$19.97 - $30.95

Medical inspection of school

Leonard Porter Ayres

Out of Stock

The war With Germany; a Statistical Summary

Leonard Porter Ayres

$9.81 - $31.95

Cleveland Education Survey, Volume 20

Leonard Porter Ayres

$16.23

Essays

Leonard Porter Ayres

$22.69 - $32.95

The Chief Cause of this and Other Depressions

Leonard Porter Ayres

$21.95 - $33.95

Price Changes And Business Prospects...

Leonard Porter Ayres

$13.69

Laggards in Our Schools; A Study of Retardation and Elimination in City School Systems

Leonard Porter Ayres

$20.92 - $43.79

Open-Air Schools

Leonard Porter Ayres

$22.69 - $42.88

The Public Schools of Springfield, Illinois: Educational Section of the Springfield Survey Conducted Under the Direction of Leonard P. Ayres, PH. D.

Leonard Porter Ayres

$17.50 - $31.95

The Relation Of Physical Defects To School Progress, Issues 61-138...

Leonard Porter Ayres

$26.95

A Measuring Scale For Ability In Spelling

Leonard Porter Ayres

$18.15 - $34.95

Medical Inspection Legislation (Classic Reprint)

Leonard Porter Ayres

$29.95

School Organization and Administration

Leonard Porter Ayres

$30.95

The Cleveland School Survey: Summary Volume

Leonard Porter Ayres

$36.95

Child Accounting In The Public Schools (1915)

Leonard Porter Ayres

$21.78 - $29.95

The Cleveland School Survey: Summary Volume, Issue 16

Leonard Porter Ayres

$24.95 - $36.95

Some Conditions Affecting Problems of Industrial Education in 78 American School Systems

Leonard Porter Ayres

$26.95

Provision for Exceptional Children in Public Schools

Leonard Porter Ayres

$15.59

The Cleveland Survey, of the Administration, of Criminal Justice, 1922

Leonard Porter Ayres

$13.69 - $26.95

An Index Number for State School Systems

Leonard Porter Ayres

$29.95

A Scale for Measuring the Quality of Handwriting of Adults

Leonard Porter Ayres

$26.95

Laggards In Our Schools

Leonard Porter Ayres

$22.95 - $33.95