http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Popular Mechanics complete book of rocks minerals gems fossils
Complete book of rocks minerals gems fossils
207 pages : illustrations (some color) ; 29 cm.
by Donal Dinwiddie and Russell P. MacFall.
Includes bibliographical references and index.