Showing 1 - 10 results of 28 for search 'IBRD]', Forespørselstid: 0.01s Refine Results
  1. 1

    Vocational and technical education and training a World Bank policy paper.

    Udgivet 1991
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    The design of ventilated improved pit latrines. af Mara, D. Duncan (David Duncan)

    Udgivet 1984
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    Pit latrine ventilation field investigation methodology af Ryan, Beverley A.

    Udgivet 1983
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  9. 9

    Social feasibility analysis on low-cost sanitation projects. af Perret, Heli E.

    Udgivet 1983
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  10. 10

    Ventilated improved pit latrines vent pipe design guidelines af Ryan, Beverley A.

    Udgivet 1983
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