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

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

書目詳細資料
主要作者: van Nostrand, John
格式: 圖書
語言:English
出版: Washington, D.C. IBRD/World Bank c1983
叢編:TAG technical note no.3
主題:
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