http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
FAO economic and social development paper N.98
Institutional changes in agricultural product and imput markets and their impact on agricultural performance,Những thay đổi tổ chức trong sản phẩm nông nghiệp và các thị trường vật tư và tác động của chúng tới thị trường nông nghiệp
agriculture - economic aspects,agriculture and state,economics