TY  - BOOK
ED  - National Research Council. Washington. Subcommittee on Swine Nutrition
TI  - Rangeland health: : new methods to classify, inventory, and monitor rangelands
U1  - 633.2 
PY  - 1994///
CY  - Washington, D.C.
PB  - National Academy Press
KW  - Pastizales
KW  - Ecología
KW  - Manejo
ER  -