TY  - BOOK
AU  - Breymeyer, A. I.
AU  - Van Dyne, George M.
TI  - Grasslands, systems analysis and man
T2  - International Biological Programme
U1  - 633.2 
PY  - 1980///
CY  - London
PB  - Cambridge University
KW  - Pastizales
KW  - Ecología
KW  - Pastos
ER  -