TY  - BOOK
AU  - Hawley, Ralph Chipman.
TI  - The practice of silviculture: with particular reference to its application in the United States
U1  - 634.909 
PY  - 1921///
CY  - New York, E.U.A.
PB  - John Wiley & Sons
KW  - Silvicultura
KW  - E.U.A
ER  -