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  1. 1
    Hand pump maintenance in the context of community well projects : an Oxfam document /
    by Pacey, Arnold
    Published 1977
    Originally published: as 'Hand pump maintenance and the objectives of community well projects'. Oxford : Oxfam, 1976.
    Book
  2. 2
    Hydraulic ram /
    by Inversin, Allen R.
    Published 1985
    A Vita publication.
    Book
  3. 3
    Six simple pumps : a construction guide/
    Published 1983
    Book
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