Robbins, D. M., & Ligon, G. C. (2014). How to design wastewater systems for local conditions in developing countries. IWA Publishing.
Lua i Stíl Chicago (17ú heag.)Robbins, David M., agus Grant C. Ligon. How to Design Wastewater Systems for Local Conditions in Developing Countries. London, [England]: IWA Publishing, 2014.
Lua MLA (9ú heag.)Robbins, David M., agus Grant C. Ligon. How to Design Wastewater Systems for Local Conditions in Developing Countries. IWA Publishing, 2014.
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