The ventilated improved double-pit latrine a construction manual for Botswana

The ventilated improved double-pit latrine a construction manual for Botswana

Manylion Llyfryddiaeth
Prif Awdur: van Nostrand, John
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Washington, D.C. IBRD/World Bank c1983
Cyfres:TAG technical note no.3
Pynciau:
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