http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
A 390.404 -- DUFF,Charles.- -- German for beginners.By Charles Duff and -- Paul Stamford.(2.rev.ed.) - New York [usw.]: -- Barnes and Noble (1960). XVII,359 S. 8° -- 1.ed.u.d.T.:Duff.Stamford:German for adults. -- (Everyday Handbooks.217.) -- 1981:4122. -- Ir.