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Filters: Keyword is hand digging and Author is Boschi, I. [Clear All Filters]

1982

I. Boschi, «Construction of hand dug wells and protection against pollution : interregional project for the implementation and evaluation of special public works programmes», vol. no. VII. UNDP (United Nations Development Programme), Geneva, Switzerland, p. iii, 56 p.: fig., 1982.

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