http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
KELLER,R[udolf] E[rnst]: -- The German Language. - London,Boston: -- Faber and Faber (1978).XII,649 S.m. -- 16 Fig.8° -- (The great languages.) -- 1978:4666/gb. -- P.