Negenman, A.J.H.

Negenman, A.J.H. et al., 1993. Water resources Wadi Adhanah and Marib area : water resources management study, Sana'a, Yemen: Yemen, Ministry of Oil and Mineral Resources. Available at: https://es.ircwash.org/sites/default/files/823-YEAD93-10851.pdf.