A nation at risk :  the imperative for educational reform / 
 Imperative for educational reform. 
a report to the nation and the Secretary of Education, United States Department of Education, by the National Commission on Excellence in Education. 
 - v, 65 pages ;  23 cm. 
<br/><br/> 'An open letter to the American people.'  'April 1983.' 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--United States.<br/>Educational change--United States.<br/>Education--Evaluation.--United States