G. DeWolf, Murin, P., Jarvis, J., and Kelly, M.,
“The cost digest : cost summaries of selected environmental control technologies”. US Environmental Protection Agency (EPA), Washington, DC, USA, p. xii, 92 p.: fig., tab., 1984.
R. C. Gumerman, Burris, B. E., and Hansen, S. P.,
“Estimation of small systems water treatment costs ((7 microfiches))”. US Environmental Protection Agency (EPA), Municipal Environmental Research Laboratory, Cincinnati, OH, USA, p. xxxiii, 567 p.: fig., tab., 1984.
J. S. MacNeill and MacNeill, A.,
“Feasibility study of alternative technology for small community water supply”. US Environmental Protection Agency (EPA), Cincinnati, OH, USA, p. xii, 128 p. (2 microfiches), 1984.
K. Bajracharya,
“Removal of iron from ground water”. Asian Institute of Technology, Bangkok, Thailand, p. IV, 41 p.: Fig., tab., tech. drwng., 1984.