anne b w effland

Anne B. W. Effland · National Agriucltural Library

12 sayfa · 1992

Soil conservation / Manuscripts / Archives / Catalogs

Anne B. W. Effland · United States Department of Agriculture, Economic Research Service

18 sayfa · 2011

Agricultural subsidies / Agriculture and state / World Trade Organization / Organisation for Economic Co-operation and Development

Anne B. W. Effland · USDA, ARS, National Agriculture Library

144 sayfa · 1998

Women in agriculture / Bibliography / Women in development / Women scientists / Women veterinarians

Douglas Helms, Anne B. W. Effland, Patricia J. Durana · Wiley & Sons, Limited, John

331 sayfa · 2008

Soil science / Soil surveys