TY  - BOOK
AU  - Crosson, Pierre R
TI  - Resource and environmental effects of U S agriculture
SN  - 801829208
CY  - Washington, D C
KW  - Agriculture - United States
KW  - Agriculture ecology - United States
KW  - Irrigation
KW  - Policy considerations
KW  - Regional projections
KW  - Soil conservation - United States
ER  -