http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Jurassic ammonite zones of the Soviet Union
viii, 116 pages : illustrations ; 28 cm.
edited by G.Ya. Krymholts, M.S. Mesezhnikov, G.E.G. Westermann ; [translated from the Russian by T.I. Vassiljeva].
Translation of: Zony i︠u︡rskoĭ sistemy v SSSR.
Special papers (Geological Society of America) ; 223