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

Bibliographic Details
Main Author:	van Nostrand, John
Format:	Book
Language:	English
Published:	Washington, D.C. IBRD/World Bank c1983
Series:	TAG technical note no.3
Subjects:	Privies > Botswana > Design and construction > Handbooks, manuals, etc.