http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
A guide for the identification of shells, including general information on mollusks and advice on shell collecting and study.
by R. Tucker Abbott ; under the editorship of Herbert S. Zim ; illustrated by George and Marita Sandström.
Rev. ed. of: Sea shells of the world, c1962.