Author: Madgwick, T.G. (et al.).:
Title: Preliminary geological report on the Abu Shaar el Qibli (Black Hill) Disdtrict. [Petroleum Research. Bulletin No. 6.]
Description: Cairo: Government Press [for] Ministry of Finance, 1920. 4to, 26.5cm. Pp. iv,11, 2 large fold. col. geol. maps, 2 photos on 1 pl., 1 fig. Orig. printed cloth-backed boards. Scarce.

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