The sample for the Sustaining Effects Study and projections of its characteristics to the national population 

 - Santa Monica:  System develop. corp,  1977 
 - xx,125p.:  26 cm. 
<br/><br/> Technicial report #1 from the study of the sustaining effects of compensatory education on basic skills 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education, Elementary--Evaluation--United States<br/>Education--Research--Methodology.--United States
<br/><br/><label>Dewey Class. No.: </label>372.973