http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Evaluation of the additon of granular media filtration to wastewater treatment plants to meet new standards
ix, 36 pages : diagrams, graphs, tables ; 28 cm.
by Madhusudan M. Dawda, M. L. Davidson, E. J. Middlebrooks.
PWRG (Utah Water Research Laboratory) ; no. 139-3