Atampugre, Nicholas. Behind the lines of stone : the social impact of a soil and water conservation project in the Sahel / Nicholas Atampugre. - Oxford : Oxfam, 1993. - xxiv, 168 p. : ill., maps ; 22 cm. Includes index. Includes bibliographical references. ISBN: 0855982586 (pbk. ) Subjects--Topical Terms: Soil conservation projects--Burkina Faso--Yatenga (Region)Water conservation projects--Burkina Faso--Yatenga (Region)Agricultural conservation--Economic aspects--Burkina Faso--Yatenga (Region)