Sprieqel. W.R. and Others <br/><br/>
Elements of Supervision II Ed. 
W.R. and Others Sprieqel 
 - London  John Hiley and Sons  1957 
 - 349p.  23 cm.  
<br/><br/><label>ISBN: </label> 17.28 
<br/><br/><label>Dewey Class. No.: </label>020   / SPR-EL