TY  - BOOK
AU  - Crystal David
AU  -  Davy Darek
TI  - Investigating English style
T2  - English language series , ed by Randolph Quirk
U1  - P111, K93 (PD) 
PY  - 1969///
CY  - London
PB  - Longmans       
KW  - LINGUISTICS
ER  -