SIMAS, M. (2013). An accurate record of volcanic ash fall deposition as characterized by dispersed organic matter in a lower Permian tonstein layer (Faxinal Coalfield, Paraná Basin, Brazil). Universitat de Barcelona.
Chicago Style (17th ed.) CitationSIMAS, M.W. An Accurate Record of Volcanic Ash Fall Deposition as Characterized by Dispersed Organic Matter in a Lower Permian Tonstein Layer (Faxinal Coalfield, Paraná Basin, Brazil). Universitat de Barcelona, 2013.
MLA (9th ed.) CitationSIMAS, M.W. An Accurate Record of Volcanic Ash Fall Deposition as Characterized by Dispersed Organic Matter in a Lower Permian Tonstein Layer (Faxinal Coalfield, Paraná Basin, Brazil). Universitat de Barcelona, 2013.
Warning: These citations may not always be 100% accurate.