Kalbermatten, J.M. Julius, De A.S. Gunnerson, C.G.

Appropriate technology for water supply and sanitation a sanitation field manual - World BanK 1980 - iii,86 - Appropriate technology Water supply Saniitation technology Latrines Toilet superstructures Pit latrines Pour-flush toilets Septic tanks

P 0032

621.8KAL


Engineering & Technology

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