Ayres, Leonard Porter, 1879-1946
Health Work in the Public Schools [recurso electrónico] / Leonard Porter Ayres - Project Gutenberg, 2006 - Project Gutenberg 19701 .
Public domain in the USA.
Text
Public schools -- Ohio -- Cleveland Schools -- Medical examinations
LA
Health Work in the Public Schools [recurso electrónico] / Leonard Porter Ayres - Project Gutenberg, 2006 - Project Gutenberg 19701 .
Public domain in the USA.
Text
Public schools -- Ohio -- Cleveland Schools -- Medical examinations
LA