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Mara, D. Duncan
Author
Mara, D. Duncan
Catalogue records by Mara, D. Duncan in the PakCat Union Catalogue.
3 catalogue records
Catalogue records
Domestic wastewater treatment in developing countries
Mara, D. Duncan
2004
The Design of Ventilated Improved Pit Latrines, 1984
Mara D Duncan
1984
Ventilated improved pit latrines: recent developments in Zimbabwe
Morgan, Peter R.
1982