TY  - BOOK
AU  - Walker, Laurence C.
TI  - The North American forests: geography, ecology, and silviculture
SN  - 1574441760
U1  - 634.9 
PY  - 1999///
CY  - Boca Raton, Fla
PB  - CRC Press
KW  - Bosques
KW  - Ecología forestal
KW  - Silvicultura
KW  - Canada
KW  - E.U.A
ER  -