F. G. Driscoll,
Groundwater and wells, 2nd ed.nd ed. St. Paul, MN, USA: Johnson Division, 1986, p. xv, 1089 p.: fig., photos, tab.
N. A. Amesz,
“Groundwater prospecting and development in the Sahel Region of West Africa”,
Land + water international : NEDECO magazine on water, transport, infrastructure and environment, pp. p. 11-14: 4 fig., 3 photogr., 1986.
C. Diluca, Engalenc, M., Durand, A., Steenhoudt, M., Diluca, J., and Henry, J. L.,
“Map of potential groundwater resources : guidelines for future water programmes : specifications and recommendations for data collection. Mapping of the groundwater resource potential of West and Central Africa : 1:5,000,000-scale : explana”. Bureau de Recherches Geologiques et Minieres (BRGM), Orleans, France, p. 2 vol. (17 p. ; 74 p.) + 4 maps: fig., tab., 1986.
H. Joannes, Parnot, J., Rantrua, F., and Sow, N. A.,
“Possibilite d'utilisation de la teledection dans le domaine d'eau en Afrique”. Comite Interafricain d'Etudes Hydrauliques (CIEH), Ouagadougou, Burkina Faso, p. 141 p.: fig., 1986.