... the Stratigraphic Relations and Paleontology of the "Hell Creek Beds", "Ceratops Beds" and Equivalents: And Their Reference to the Fortunion FormaFrank Hall KnowltonÉpuiséPrévenez-moi
The Mining Districts of the Idaho Basin and the Boise Ridge, IdahoFrank Hall KnowltonÉpuiséPrévenez-moi
