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2. MASRI, M. (1963): Unpublished report on the Geology in the Amman-Zerqa area.—Central Water Authority, Jordan. 33 pp.
3. McDONALD, M., Panters and Hunting Technical Service (1965): East Bank, Jordan water resources.—Summary report, Natural Resources Authority, Jordan. 60 pp., 6 Figs., 40 Tabs, 11 Pls.
4. BENDER, F. (1968): Geologie von Jordanien.—230 pp., 160 Figs., 14 Tabs., 5 Pls., Berlin (Bornträger)
5. BENDER, F. (1975): Geology of Arabian Peninsula, Jordan.—U. S. Geol. Surv. Prof. Paper560-I, 136 pp, 19 Figs., 3 Pls., Washington