Shaver, Erwin L. <br/><br/>
Project principle in religious education  manual of theory and practice for church - school leaders 

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 - Chicago  University of Chicago Press  1924 
 - xix, 375 p. 
 -   .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>268  / S533