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
Publisher: International Bank for Reconstruction and Development/The World Bank
Published: 1983
Place of publication: Washington, D.C
Language: eng
Number of pages: 16
Subjects: Privies -- Design and construction; Privies -- Ventilation -- Design and construction; Sanitary engineering -- Developing countries
Notes: "A joint United Nations Development Programme and World Bank contribution to the International Drinking Water Supply and Sanitation Decade".

Cover title.

Includes bibliographical references.