Popenoe, Joshua. <br/><br/>
Summerhill 
Traducción de Francesc Gironella 
 - Barcelona  Editorial Laie  1975 
 - 135 p. 
<br/><br/> Translation of : Inside Summerhill 
<br/><br/><label>ISBN: </label>0805501126 
<br/><br/><label>LCCN: </label>73126752 //r85 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Summerhill School.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Summerhill School, Leiston Eng.
<br/><br/><label>LC Class. No.: </label>LF795.L692953  / P6 
<br/><br/><label>Dewey Class. No.: </label>371/.02/0942642