Biblio

M. S. Gould y Healey, M. J., «Nitrates in rural wells of the Senegal River Basin», Water resources bulletin, pp. p. 244-247: fig., tab., 1981.

F. R. B. U. R. G. E. A. P. - Paris, La construction des puits en Afrique tropicale, 2nd ed.ª ed. Paris, France: BURGEAP, Bureau d'Etudes de Geologie Appliquee et d'Hydrogeologie Souterraine, 1980, p. 201 p. : fig., tab.

R. E. Brush, «Wells construction : hand dug and hand drilled». Peace Corps, Washington, DC, USA, p. viii, 282 p.: fig., tab., 1979.

W. E. Wood y Watt, S. B., Hand dug wells and their construction. London, UK: IT Publications, 1976, p. 234 p.: photogr., ill.