TY  - BOOK
AU  - Biber, Douglas.
TI  - Variation across speech and writing
SN  - 0521425565
U1  - 302.2 
PY  - 1988///
CY  - Cambridge [England], New York
PB  - Cambridge University Press
KW  - Language and languages
KW  - Variation
KW  - Oral communication
KW  - Written communication
N1  - Includes bibliographical references and index
ER  -