Keller Franklin J <br/><br/>
Double - purpose high school : Closing the gap between vocational and academic preparation 

 - New York, USA  Harper and Brothers Publisher  1953 
 - vi,207p 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Secondary education; Vocational schools