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Filters: Keyword is social marketing and Author is Heierli, U.  [Clear All Filters]
2008
U. Heierli, “Marketing safe water systems why it is so hard to get safe water to the poor – and so profitable to sell it to the rich ”. Swiss Agency for Development and Cooperation (SDC), Bern, Switzerland, p. 114 p. : fig., tab., 2008.
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