Alt, Martha Naomi. <br/><br/>
In the middle  characteristics of public schools with a focus on middle schools 
Martha Naomi Alt, Susan P.Choy ; Charles H. Hammer, project officer. 
 - Washington, DC  U.S. Dept. of Education, Office of Educational Rersearch and Improvement  For sale by the U.S. G.P.O., Supt. of Docs.  (2000) 
 - xx, 194 p.  ill.  28 cm. 
 - NCES . Statistical analysis report  2000-312. .
<br/><br/>Includes bibliographical references (p.49-53). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Middle school education--Statistics.--United States<br/>Middle Schools--Evaluation.--United States<br/>Middle school education--Longitudinal studies.--United States