Книги автора «Leonard Porter Ayres»

Laggards in our schools (Leonard Porter Ayres)

The prospects for building construction in American cities (Leonard Porter Ayres)

Child accounting in the public schools (Leonard Porter Ayres)

The Cleveland School Survey (summary volume) (Leonard Porter Ayres)

School organization and administration (Leonard Porter Ayres)

Laggards in our schools: a study of retardation and elimination in city school systems (Leonard Porter Ayres)

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)

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

Cleveland Education Survey, Volume 20 (Leonard Porter Ayres)

The Public Schools of Springfield, Illinois, 1914 (Leonard Porter Ayres)

Health Work in the Public Schools (Classic Reprint) (Leonard Porter Ayres)

Child Accounting in the Public Schools (Classic Reprint) (Leonard Porter Ayres)

Child Accounting In The Public Schools (1915) (Leonard Porter Ayres)

The Cleveland School Survey; Summary Volume (Leonard Porter Ayres,Cleveland Foundation. Survey Committee.)

A Measuring Scale for Ability in Spelling (Leonard Porter Ayres)