TY  - BOOK
ED  - National Research Council (U.S.). Committee on Twenty-First Century Systems Agriculture
TI  - Toward sustainable agricultural systems in the 21st century
SN  - 9780309148962
SN  - 201092771
U1  - 630.973 NAT 
PY  - 2010///
CY  - Washington, DC
PB  - National Academies Press
KW  - Agricultural systems - United States
KW  - Sustainability - United States
KW  - Sustainable agriculture - United States
N1  - Includes bibliographical references
ER  -