http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Geochemistry of vanadium and nickel in organic matter of sedimentary rocks
Photocopy. Ann Arbor, Mich. : UMI Dissertation Services, 1991. xxiii, 353 p. : ill., maps ; 28 cm.