Dangos 1 - 7 canlyniadau o 7 ar gyfer chwilio 'Mara, D. Duncan (David Duncan)', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

    Low-cost urban sanitation gan Mara, D. Duncan (David Duncan) 1944-

    Cyhoeddwyd 1996
    Llyfr

    Low-cost urban sanitation
  2. 2

    Low-cost sewerage

    Cyhoeddwyd 1996
    Llyfr

    Low-cost sewerage
  3. 3

    Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture measures for public health protection gan Mara, D. Duncan (David Duncan) 1944-

    Cyhoeddwyd 1989
    Llyfr

    Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture measures for public health protection
  4. 4

    Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture measures for public health protection gan Mara, D. Duncan (David Duncan) 1944-

    Cyhoeddwyd 1989
    Llyfr

    Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture measures for public health protection
  5. 5

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

    Cyhoeddwyd 1984
    Llyfr

    The design of ventilated improved pit latrines.
  6. 6

    Water, wastes, and health in hot climates gan Feachem, Richard G. 1947-

    Cyhoeddwyd 1977
    Llyfr

    Water, wastes, and health in hot climates
  7. 7

    Sewage treatment in hot climates gan Mara, D. Duncan (David Duncan) 1944-

    Cyhoeddwyd 1976
    Llyfr

    Sewage treatment in hot climates

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