Institute for Educational Management at Harvard University's Graduate School of Education 7 July - 3 August 1991. 

 - Directorate technical refresher leave reports ;  5 .
 - Directorate technical refresher leave reports (DIRC/1006) ;  5 .
<br/><br/> DIRC/1006/5.  73 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sabbatical leave