Jeskyně Moravskoslezských Beskyd a okolí. Caves in the Moravskoslezské Beskydy Mts. and Their SurroundingsJosef WagnerÉpuiséPrévenez-moi
Short Course Series - 44: Geology of Gems DepositsMineralogical Association of CanadaÉpuisé4,0Prévenez-moi
... the Stratigraphic Relations and Paleontology of the "Hell Creek Beds", "Ceratops Beds" and Equivalents: And Their Reference to the Fortunion FormaFrank Hall KnowltonÉpuiséPrévenez-moi