Williamson, Ronald. <br/><br/>
Scheduling the middle level school to meet early adolescent needs 
by Ronald Williamson. 
 - Reston, Va.  National Association of Secondary School Principals  c1993. 
 - v, 57 p.  ill.  26 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0882102796 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Schedules , School<br/>Middle Schools--United States.