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- Geological Survey (U.S.)5
- Hayʼah al-Miṣrīyah al-ʻĀmmah lil-Misāḥah al-Jiyūlūjīyah wa-al-Mashrūʻāt al-Taʻdīnīyah3
- Hayʼah al-Miṣrīyah al-ʻĀmmah lil-Tharwah al-Maʻdinīyah3
- Česká geologická služba.1
- France. Service géologique national1
- Miles, Christine E. (Christine Elizabeth)1
- Ramsey, Kelvin W.1
- Smith, William, 1769-18391
- Twichell, David C.1
