The Use of Shemshak phosphate rock for the manufacture of phosphatic fertilizers

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La Sedimentation des evaporites: comparaison des donnes sahariennes a quelques theories , hypotheses et observations classiques ou nouvelles

/ Georges Busson()

The Isfahan- Saidabad depression central Persia

/ by: R. C. Jennings and K. Washington gray(Washington Gray, K)

Geochemical prospecting in Saghin area Kerman region

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Replacement dinclusions solides primaires au coeur de quartz bipyramides de lEocene nord- Tunisien

/ by Christiane Sobouraud et Hassan Salehi Siavochani(Salehi Siavochani, Hassan)