TY  - BOOK
AU  - Hillis,W E  .
TI  - Heartwood and tree exudates / 
SN  - 3540175938
U1  - 674.8 
PY  - 1987///
CY  - New York : 
PB  - Springer-Verlag , 
KW  - FORESTRY
N1  - Includes bibliographical references and index
ER  -