Learned William S <br/><br/>
Experiment in responsible learning : A report to the carnegie foundation on projects in evaluation of secondary school progress 1929-1938 

 - New York, USA  The Carnegie Foundation for the Advancement of Teaching   1940 
 - Study of the Relations of Secondary and Higher Education in Pennsylvania .
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education