TY  - BOOK
ED  - Crop Science Society of America. Madison, Wis.
TI  - Range research and range problems
T2  - Special publication
U1  - 633.2 
PY  - 1973///
CY  - Madison, Wis
PB  - (s.e.)
KW  - Forrajes
KW  - Pastizales
KW  - Investigación
ER  -