Dangos 1 - 7 canlyniadau o 7 ar gyfer chwilio '', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

    Why a pit latrine a manual for extension workers and latrine builders gan Mate, Joseph

    Cyhoeddwyd 1991
    Llyfr

    Why a pit latrine a manual for extension workers and latrine builders
  2. 2

    The design of pour-flush latrines gan Mara, D. Duncan 1944-

    Cyhoeddwyd 1985
    Llyfr

    The design of pour-flush latrines
  3. 3

    Ventilated improved pit latrines Zimbabwean brick designs gan Morgan, Peter R

    Cyhoeddwyd 1985
    Llyfr

    Ventilated improved pit latrines Zimbabwean brick designs
  4. 4

    Ventilated improved pit latrines vent pipe design guidelines gan Ryan, Beverly A.

    Cyhoeddwyd 1983
    Llyfr

    Ventilated improved pit latrines vent pipe design guidelines
  5. 5

    The ventilated improved double pit latrine a construction manual for Botswana gan Van Nostrand, John Cornelius 1949-

    Cyhoeddwyd 1983
    Llyfr

    The ventilated improved double pit latrine a construction manual for Botswana
  6. 6

    Rural ventilated improved pit latrines a field manual for Botswana gan Van Nostrand, John Cornelius 1949-

    Cyhoeddwyd 1983
    Llyfr

    Rural ventilated improved pit latrines a field manual for Botswana
  7. 7

    Sanitation without water gan Winblad, Uno

    Cyhoeddwyd 1980
    Llyfr

    Sanitation without water

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