http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Physical and economic factors associated with the establishment of stream water quality standards
[by] Merwin D. Dougal, E. Robert Baumann [and] John F. Timmons.
Photocopy. Springfield, Va., Clearinghouse for Federal Scientific and Technical Information, 1970. "PB 191 167"
Bibliography: volume 1, pages I-271-I-303.
ISWRRI (Iowa State Water Resources Research Institute) ; no. 27