TY  - BOOK
AU  - Langan, John 
AU  - Goldstein,Janet M. 
TI  - English skills with readings
SN  - 70363757
AV  - PE1408.L3182 1991  
PY  - 1991///.
CY  - New York
PB  - McGraw-Hill
KW  - mastering english skills
ER  -