(2005). Tephra layers of Blind Spring Valley and related upper Pliocene and Pleistocene tephra layers, California, Nevada, and Utah: Isotopic ages, correlation, and magnetostratigraphy. USGS Information Services.
Chicago-Zitierstil (17. Ausg.)Tephra Layers of Blind Spring Valley and Related Upper Pliocene and Pleistocene Tephra Layers, California, Nevada, and Utah: Isotopic Ages, Correlation, and Magnetostratigraphy. Denver, CO: USGS Information Services, 2005.
MLA-Zitierstil (9. Ausg.)Tephra Layers of Blind Spring Valley and Related Upper Pliocene and Pleistocene Tephra Layers, California, Nevada, and Utah: Isotopic Ages, Correlation, and Magnetostratigraphy. USGS Information Services, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.