Ventilated improved pit latrines : vent pipe design guidelines /

Bibliographic Details

Main Author:	Ryan, Beverley A.
Corporate Authors:	United Nations Development Programme, World Bank
Other Authors:	Mara, D. Duncan (David Duncan), 1944-
Format:	Microform Book
Language:	English
Published:	Washington, D.C. : The International Bank for Reconstruction and Developmet [sic] /The World Bank, [1983]
Series:	TAG technical note ; no. 6. AT microfiche reference library ; 17-410.
Subjects:	Outhouses.