Jordan, T. D. (1984). A handbook of gravity-flow water systems for small communities. Intermediate Technology.
Chicago-viite (17. p.)Jordan, Thomas D. A Handbook of Gravity-flow Water Systems for Small Communities. London: Intermediate Technology, 1984.
MLA-viite (9. p.)Jordan, Thomas D. A Handbook of Gravity-flow Water Systems for Small Communities. Intermediate Technology, 1984.
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