http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Correcting the unproductiveness of acid and alkaline muck soils
KNOTT, J.E.: -- Correcting the unproductiveness of acid -- and alkaline muck soils. 1933 -- s.Tait, G.M.