Clay mineralogy of the Hawthorne Group
MLA
Hetrick, John H. "Clay mineralogy of the Hawthorne Group." University of Georgia. Map and Government Information Library. 1987, https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pg3-bs1-bi5-bno-p-b79.
APA
Hetrick, John H (1987). Clay mineralogy of the Hawthorne Group. Retrieved from https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pg3-bs1-bi5-bno-p-b79
Chicago
Hetrick, John H. "Clay mineralogy of the Hawthorne Group." 1987. October 20, 2026. https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pg3-bs1-bi5-bno-p-b79.