TY  - BOOK
AU  - Collins,Tim
TI  - Correct your English errors: avoid 99% of the common mistakes made by learners of English 
PY  - 2009///
CY  - NY
PB  - McGraw-Hill
KW  - English language
KW  - Textbooks for foreign speaker
KW  - Usage
KW  - Errors of usage
N1  - Includes indexes
ER  -