http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Global perspectives on agroecology and sustainable agricultural systems
proceedings of the Sixth International Scientific Conference of the International Federation of Organic Agriculture Movements
Agroecology Program University of California
Edited by Patricia Allen, Debra Van Dusen
Sustainable agriculture,Organic farming,Agricultural ecology,Agricultural systems