TY  - BOOK
AU  - Downing, Angela.
AU  - Locke, Philip.
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 0139524908 (pbk.)
SN  - 2
PY  - 1992///]46
CY  - New York
PB  - Prentice Hall
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Grammar;Textbooks for foreign speakers
KW  - English language;English language
KW  - Problems, exercises, etc
N1  - Includes index; 5
ER  -