Georgia. Department of Transportation. Office of Materials and Research. Research and Development Branch. "Strategies for problem weed control on grass roadsides." University of Georgia. Map and Government Information Library. 1999-03, https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bs1-bc6-bg7-b1999.

Georgia. Department of Transportation. Office of Materials and Research. Research and Development Branch (1999-03). Strategies for problem weed control on grass roadsides. Retrieved from https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bs1-bc6-bg7-b1999

Georgia. Department of Transportation. Office of Materials and Research. Research and Development Branch. "Strategies for problem weed control on grass roadsides." 1999-03. October 17, 2026. https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bs1-bc6-bg7-b1999.