APA (7th ed.) Citation

Fritz, W. J., Howells, M. F., & Reedman, A. J. (1990). Volcaniclastic sedimentation in and around an Ordovician subaqueous caldera, Lower Rhyolitic Tuff Formation, North Wales. Geological Society of America Bulletin, 102, 1246. https://doi.org/10.1130/0016-7606(1990)102<1246:VSIAAA>2.3.CO;2

Chicago Style (17th ed.) Citation

Fritz, William J., M. F. Howells, and A. J. Reedman. "Volcaniclastic Sedimentation in and Around an Ordovician Subaqueous Caldera, Lower Rhyolitic Tuff Formation, North Wales." Geological Society of America Bulletin 102 (1990): 1246. https://doi.org/10.1130/0016-7606(1990)102<1246:VSIAAA>2.3.CO;2.

MLA (9th ed.) Citation

Fritz, William J., et al. "Volcaniclastic Sedimentation in and Around an Ordovician Subaqueous Caldera, Lower Rhyolitic Tuff Formation, North Wales." Geological Society of America Bulletin, vol. 102, 1990, p. 1246, https://doi.org/10.1130/0016-7606(1990)102<1246:VSIAAA>2.3.CO;2.