http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Biochemical oxygen demand, dissolved oxygen, selected nutrients, and pesticide records of Texas surface waters, 1968
by Alton J. Dupuy, Douglas B. Manigold, and Jean A. Schulze ; prepared by the U.S. Geological Survey in cooperation with the Texas Water Development Board.
Report (Texas Water Development Board) ; 108