TY - RPRT TI - Applications of ERTS products in range and water management problems, Sahelian Zone, Mali, Upper Volta, and Niger AU - M.R. Cooley AU - R. M. Turner PY - 1975 DO - 10.3133/ofr75498 UR - https://pubs.usgs.gov/publication/ofr75498 ID - ofr75498 ER -