Upper devonian and lower mississippian conodont zones Montana, Wyoming and south Dakota

/ by Gilbert Klapper()

Divrigi iron mines

/ By Irfan Pehlivan()

Results of integrated geophysical studies in Anarak area( central Iran) contract 73105

V.Popov

Report on detailed geological prospecting in Anarak area ( central Iran):( Kuh-e dom, Rizab-e Maryam and chah Alikhan localities ) contract 73105

Characterization of sedimentary and igneous phosphate deposits of Iran

/ by M. H. Bolourchi, M. Amini, H. Helalat()