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    A monitoring and evaluation manual for low-cost sanitation programs in India. por Perlato, Ronald

    Publicado 1984
    Libro
  3. 3

    The design of ventilated improved pit latrines. por Mara, D. Duncan (David Duncan)

    Publicado 1984
    Libro
  4. 4

    The design of ventilated improved pit latrines por Mara, D. Duncan (David Duncan) 1944-

    Publicado 1984
    Libro
  5. 5

    The ventilated improved double-pit latrine a construction manual for Botswana por van Nostrand, John

    Publicado 1983
    Libro
  6. 6

    Pit latrine ventilation field investigation methodology por Ryan, Beverley A.

    Publicado 1983
    Libro
  7. 7

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

    Publicado 1983
    Libro
  8. 8

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

    Publicado 1983
    Libro
  9. 9

    Rural ventilated improved pit latrine a field manual for Botswana por van Nostrand, John

    Publicado 1983
    Libro
  10. 10

    Ventilated improved pit latrines recent developments in Zimbabwe por Morgan, Peter R.

    Publicado 1982
    Libro