Hamill, James F. <br/><br/>
Twice as less :   Black english and the performance of black students in mathematics and science. 

 - Washington, DC :   American Anthropological Association,   1988. 
 - p. 746 
 - trimestral 
 - Vol.90, no.3(Sep.1988) 
 - American Anthropologist ;   vol.90, no.3 .
 - Estados Unidos.   American Anthropological Association. .
<br/><br/> comments on: linguistic anthropology.