TY  - BOOK
AU  - Zimmermann,Martin H.
AU  - Brown,Claud L.
TI  - Trees:structure and function
U1  - 634.9 
PY  - 1971///
CY  - New York
PB  - Speringer-Verlag.
KW  - Forestry
KW  - Forest
KW  - Trees
ER  -