TY  - BOOK
AU  - Collingwood,G.H.
AU  - Brush,Warren David
AU  - Butcher,Devereux
ED  - American Forestry Association.
TI  - Knowing your trees,
AV  - QK482 .C27 1974
U1  - 582/.1609/73 
PY  - 1974///
CY  - Washington
PB  - American Forestry Association
KW  - Trees
KW  - United States
N1  - Bibliography: p. 369
UR  - http://www.archive.org/details/knowingyourtrees00coll
UR  - http://www.openlibrary.org/books/OL5435692M
ER  -