Summaries and technical documentation for performance changes citizenship and social studies assessments 

 - Washington :  United States Government Printing Office,  1979 
 - 212 p. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Citizenship<br/>Social studies
<br/><br/><label>Dewey Class. No.: </label>323.6