Status of porous biomass support systems for wastewater treatment : an innovative, alternative technology assessment / William C. Boyle and Alfred T. Wallace
"EPA/600/S 2-86/019". "Apr. 1986". At head of title: Project summary. Caption title.
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Microform. Washington, D.C., U.S. G.P.O., 1986. 1 microfiche : negative : 11 x 15 cm.
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