http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Encyclopedia of soils in the environment
4 volumes : illustrations (some color), maps (some color) ; 28 cm.
editor-in-chief, Daniel Hillel ; editors, Jerry L. Hatfield [and others].
Includes bibliographical references and index.