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

Bibliografiske detaljer
Hovedforfatter:	van Nostrand, John
Format:	Bog
Sprog:	English
Udgivet:	Washington, D.C. IBRD/World Bank c1983
Serier:	TAG technical note no.3
Fag:	Privies > Botswana > Design and construction > Handbooks, manuals, etc.