TY  - BOOK
AU  - Allen,William Stannard
AU  - Charlton,M.A.
TI  - Keep up your English: An intermediate english course 
PY  - 1966///
CY  - London
PB  - British Broadcasting Corporation
KW  - English language
KW  - Exercises
KW  - Study guides
KW  - Textbooks for foreign speakers
ER  -