http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
LONGWELL, Chester R[ay]. -- Chester R.Longwell and Richard F[oster]Flint. -- Introduction to Physical Geology.2.ed. - New York, -- London:Wiley(1962).504 S.m.zahlr.Abb. 4°