TY  - BOOK
AU  - Close,R.A.
TI  - English as a foreign language: its constant grammatical problems 
SN  - 0044250258
AV  - PE1128 
PY  - 1981///
CY  - London, Boston
PB  - Allen & Unwin
KW  - English language
KW  - Textbooks for foreign speakers
KW  - Usage
N1  - Includes index; Bibliography: p. 205-207
ER  -