http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Sources of shallow saline ground water in Concho, Runnels, and Tom Green Counties
prepared by B.C. Richter, C.W. Kreitler ; assisted by T.J. Clement.
Prepared for Railroad Commission of Texas, Austin, Texas, under contract number IAC(84-85)-2122.
Includes bibliographical references (pages 30-31).