The risk of vanishing effects
Subtitle: impact evaluation of drinking water supply and sanitation programmes in rural Benin
By: [Policy and Operations Evaluation Dept.].
Series: IOB impact evaluation -- no. 357; IOB impact evaluation -- no. 357.
Publisher: Ministry of Foreign Affairs, Policy and Operations Department
Published: 2011
Place of publication: The Hague, The Netherlands
Language: eng
Number of pages: 196
ISBN-13: 9789053284124
Subjects: Water-supply; Water; Purification; Rural development projects; Evaluation
Other titles: Impact evaluation of drinking water supply and sanitation programmes in rural Benin
Notes: "November 2011."

Series statement from spine.

Includes bibliographical references (p. 190-193).

Also available online.