TY  - BOOK
AU  - Staff K A G
AU  -  Wiksten N A
TI  - Tree harvesting techniques
T2  - Foresty sciences
U1  - JB, M4 
PY  - 1984///
CY  - Dordrecht
PB  - Martinus Nijhoff        
KW  -  Forestry
KW  - Agriculture
ER  -