http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Federal Water Pollution Control Administration.
xi, 281 pages : illustrations, maps ; 24 cm.
[Washington] U.S. Federal Water Pollution Control Administration, Division of Technical Support; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1969