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Filters: Keyword is maintenance and Author is Pickford, J. [Clear All Filters]
, A guide to the development of on-site sanitation. Geneva, Switzerland: World Health Organization (WHO), 1992, p. viii, 237 p.: fig., tab.
, «Public and communal latrines», Waterlines, an international journal of water, sanitation and waste, vol. no. 28, pp. p. 15-18: ill., 1991.
, «The design of septic tanks and aqua-privies», vol. no. 187. Building Research Establishment, Overseas Division, Watford, UK, p. 12 p., 1980.