TY  - BOOK
AU  - Leech, Geoffrey.
TI  - A Communicative Grammer of English
U1  - 415:420 L3 
PY  - 1973///
CY  - England
PB  - Longman
KW  -  Geoffrey Leech and Jan Svartvik.
KW  - Svartvik Jan 
KW  - English,Language
ER  -