http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
DUFF,Charles.- -- German for beginners.By Charles Duff and -- Paul Stamford.(2.rev.ed.) - New York[usw.]: -- Barnes and Noble(1960). XV,359 S. 8° -- 1.ed.u.d.T.:Duff,Stamford:German for adults. -- (Everyday Handbooks.217.) -- 1982:1981. -- Lei.