Coccioni, R., & Pross, J. (2008). Integrated stratigraphy of the Oligocene pelagic sequence in the Umbria-Marche basin (northeastern Apennines, Italy): A potential Global Stratotype Section and Point (GSSP) for the Rupelian/Chattian boundary. The Geological Society of America bulletin, 120(3/4), .
Chicago Style (17th ed.) CitationCoccioni, Rodolfo, and Jörg Pross. "Integrated Stratigraphy of the Oligocene Pelagic Sequence in the Umbria-Marche Basin (northeastern Apennines, Italy): A Potential Global Stratotype Section and Point (GSSP) for the Rupelian/Chattian Boundary." The Geological Society of America Bulletin 120, no. 3/4 (2008).
MLA (9th ed.) CitationCoccioni, Rodolfo, and Jörg Pross. "Integrated Stratigraphy of the Oligocene Pelagic Sequence in the Umbria-Marche Basin (northeastern Apennines, Italy): A Potential Global Stratotype Section and Point (GSSP) for the Rupelian/Chattian Boundary." The Geological Society of America Bulletin, vol. 120, no. 3/4, 2008.