TY  - BOOK
AU  - Dix, Ralph
AU  - Beidleman, Richard G.
TI  - The grassland ecosustem; a preliminary synthesis
T2  - Science series
U1  - 633.2 
PY  - 1969///
CY  - For Collins, Colorado State.
PB  - Univ. Range Science Dept.
KW  - Pastizales
KW  - Ecología
KW  - Modelos matemáticos
ER  -