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Biblio

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Filters: Keyword is soils and Author is Helvetas -Nugegoda, LK  [Clear All Filters]
1994
L. K. Helvetas - Nugegoda and Moratuwa, L. K. Sarvodaya, Construction of latrines in rural villages in Sri Lanka. Helvetas, Swiss Association for Development and Cooperation, Nugegoda, Sri Lanka, p. 22 p. : tech. drwng., 1994.
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