TY  - BOOK
AU  - Yule, George
TI  - Explaining English grammar
SN  - 0194371727
U1  - 425/YUL YUL 
PY  - 1998///
CY  - UK
PB  - Oxford UP ELT
KW  - Teacher’s collection
KW  - Skills
N1  - ELT
ER  -