TY  - BOOK
AU  - Duerr, William Allen
TI  - Timber; problems, prospects, policies
U1  - 674 
PY  - 1973///
CY  - Ames
PB  - Iowa State University
KW  - Industria maderera
KW  - E.U.A
KW  - Madera en pié
KW  - Recursos forestales
ER  -