Lyons, P. C., Outerbridge, W. F., Triplehorn, D. M., Evans, H. D., Congdon, R. D., Capiro, M., . . . Nash, W. P. (1992). An Appalachian isochron: A kaolinized carboniferous air-fall volcanic-ash deposit (tonstein). The Geological Society of America bulletin, 104(11), . https://doi.org/10.1130/0016-7606(1992)104<1515:AAIAKC>2.3.CO;2
Chicago Style (17th ed.) CitationLyons, Paul C., William F. Outerbridge, D. M. Triplehorn, Howard D. Evans, Roger D. Congdon, Mirtha Capiro, Jürgen C. Hess, and William P. Nash. "An Appalachian Isochron: A Kaolinized Carboniferous Air-fall Volcanic-ash Deposit (tonstein)." The Geological Society of America Bulletin 104, no. 11 (1992). https://doi.org/10.1130/0016-7606(1992)104<1515:AAIAKC>2.3.CO;2.
MLA (9th ed.) CitationLyons, Paul C., et al. "An Appalachian Isochron: A Kaolinized Carboniferous Air-fall Volcanic-ash Deposit (tonstein)." The Geological Society of America Bulletin, vol. 104, no. 11, 1992, https://doi.org/10.1130/0016-7606(1992)104<1515:AAIAKC>2.3.CO;2.