TY  - BOOK
AU  - S. K. DAS
TI  - TEACH YOURSELF
SN  - 0  86131  576  6
U1  - 428/DAS/TEA 
PY  - 1985///
CY  - New Delhi
PB  - ORIENT LONGMAN
KW  - ENGLISH LANGUAGE
KW  - STANDARD ENGLISH USAGE
ER  -