1. The status and distribution of the gopher tortoise Gopherus polyphemus;Auffenberg,1982
2. Determination of threatened status for the gopher tortoise;Gopherus polyphemus).Fed Reg.,1987
3. Endangered and Threatened wildlife and plants: 90-day finding on a petition to list the eastern population of gopher tortoise (Gopherus polyphemus) as Threatened;Fed Reg.,2009
4. Endangered and Threatened wildlife and plants; 12-month finding on a petition to list the gopher tortoise as Threatened in the eastern portion of its range;Fed Reg.,2011