Ventilated improved pit latrines
Subtitle: vent pipe design guidelines
By: by Beverley A. Ryan and D. Duncan Mara.
Contributors: Mara, D. Duncan 1944-
Series: TAG technical note -- no. 6.; TAG technical note -- no. 6.
Publisher: World Bank
Published: 1983
Place of publication: Washington, DC
Language: eng
Number of pages: 16
Subjects: Outhouses.; Outhouses -- Design and construction.
Notes: Title from cover.