The Philosophy of open education / 
edited and with an introd. by David Nyberg 
 - London ;  Boston :  Routledge & K. Paul,  1975 
 - xiii, 213 p. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0710082851 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Open plan schools.
<br/><br/><label>Dewey Class. No.: </label>371.3  / PHI 1975