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Biblio

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Filters: Keyword is ventilators and Author is Ryan, B.  [Clear All Filters]
1986
B. Ryan y Mara, D. D., La ventilation des latrines a fosse : methodologie d'enquete sur le terrain, vol. no. 4. Washington, DC, USA: World Bank, Technology Advisory Group, 1986, p. v, 17 p. : tab., photogr.
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