J. F. Kriessl, Cooper, I. A., and Rezek, J. W.,
“Alternatives for small wastewater treatment systems : pressure sewers/vacuum sewers”, vol. EPA-625/4-77-011. US Environmental Protection Agency (EPA), Center for Environmental Research Information, Cincinnati, OH, USA, p. iii + 97 p. : figs. tabs. refs. anns., 1977.