TY  - GEN
AU  - Clay, Sharon A. 
TI  - GIS applications in agriculture : invasive species
SN  - 9781420078800
U1  - 632 
PY  - 2011///
CY  - Boca Raton
PB  - CRC Press
KW  - Agricultural mapping
KW  - Agricultural information
KW  - Geographic information systems
ER  -