TY  - BOOK
AU  - Labov William
TI  - Study of the non standard English of Negro and Puerto Rican speakers in New York City :  Coperative research project no. 3288
U1  - P111,9D7311, K8.1-;1 
PY  - 1968///
CY  - N York 
PB  - Columbia      
KW  - LINGUISTICS
ER  -