Burgerstein, Leo <br/><br/>
Higiene escolar 

 - 3.ed. 
 - Barcelona :  Labor,  1937 
 - xii-223p.;  18 cm. 
 - Labor;  204 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Higiene escolar
<br/><br/><label>Universal Decimal Class. No.: </label>371.7