http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Simple methods for aquaculture pond construction for freshwater fish culture
Food and Agriculture Organization of the United Nations
Main water intake structures, water transport structures, pond inlet structures, pond outlet structures, flood and silt control structures, detailed planning for fish farm construction.
Fish ponds,Fish-culture,Freshwater fishes