TY  - BOOK
AU  - Greenbaum,Sidney  .
AU  - Whitcut,Janet  .
TI  - Longman guide to english usage / 
SN  - 0582556198
U1  - 428 
PY  - 1988///
CY  - England : 
PB  - Longman , 
KW  - LINGUSTICS
N1  - NULL
ER  -