TY  - BOOK
AU  - Sarkanen,K.V.
AU  - Ludwig,Charles Heberle
TI  - Lignins: occurrence, formation, structure and reactions 
SN  - 0471754226
U1  - 582.1504874 23
PY  - 1971///
CY  - New York
PB  - Wiley-Interscience
KW  - Lignin
N1  - Includes bibliographical references
ER  -