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Filters: Keyword is ventilated improved pit latrines and Author is Heeres, P.J.  [Clear All Filters]
1983
P. J. Heeres, “Evaluation of sanitation programme planning”. Delft University of Technology, Delft, The Netherlands, p. iv, 43 p.: fig., tab., 1983.
P. J. Heeres, “The ventilated improved pit latrine : a ventilation study”. Delft University of Technology, Delft, The Netherlands, p. 103 p. in various pagings, 1983.
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