TY  - BOOK
AU  - Weaver, John E.
TI  - Prairie plants and their environment: : a fifty-year study in the Midwest
U1  - 633.2 
PY  - 1968///
CY  - Lincoln
PB  - University of Nebraska
KW  - Ecología vegetal
KW  - Pastos
KW  - Praderas
ER  -