Georgia. Department of Mines, Mining and Geology. "South Georgia Minerals Program: phosphate in Chatham, Echols, Lanier, Lowndes, Jeff Davis, Montgomery, Liberty, Long, and Wayne counties. [Nov. 1967]." University of Georgia. Map and Government Information Library. 1967-11, https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bm500-b-pr1-bm5-bno-p-b9.

Georgia. Department of Mines, Mining and Geology (1967-11). South Georgia Minerals Program: phosphate in Chatham, Echols, Lanier, Lowndes, Jeff Davis, Montgomery, Liberty, Long, and Wayne counties. [Nov. 1967]. Retrieved from https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bm500-b-pr1-bm5-bno-p-b9

Georgia. Department of Mines, Mining and Geology. "South Georgia Minerals Program: phosphate in Chatham, Echols, Lanier, Lowndes, Jeff Davis, Montgomery, Liberty, Long, and Wayne counties. [Nov. 1967]." 1967-11. October 30, 2026. https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bm500-b-pr1-bm5-bno-p-b9.