Wilson, Eleanor. <br/><br/>
Twice as Less  black english and the performance of black students in mathematics and science 
Eleanor Wilson. 
 - New York  W. W. Norton  1987. 
 - 240 p. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p.234-235. 
<br/><br/><label>ISBN: </label>0393023923 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Black English<br/>Science--Study and teaching--United States.<br/>Mathematics--Study and teaching--United States.<br/>Language and education--United States.<br/>Afro-Americans--Language.<br/>Afro-Americans--Education.