TY  - BOOK
AU  - Breymeyer A I
AU  - Van Dyne G M
TI  - Grasslands, systems analysis and man
SN  - 0-521-21872-1
U1  - 577.4 
PY  - 1980///
CY  - Cambridge
PB  - C U P
KW  - Grassland ecology-mathematical models
ER  -