TY  - BOOK
AU  - Summers,Della
TI  - Longman language activator: the world's first production dictionary 
SN  - 0582040930 (pbk.)
AV  - PE1628 .L66 1993
PY  - 1993///
CY  - Harlow, Essex, England
PB  - Longman
KW  - English language
KW  - Usage
KW  - Dictionaries
ER  -