Literature
- Arnold, E. N., and J. A. Burton. 1978. A field guide to the reptiles and amphibians of Britain and Europe. Collins, London. 272 pp.
- Clark, R. J. 1963. On the possibility of an autumnal mating in the tortoise (Testudo graeca ibera). British J. Herpetol. 3: 85-86.
- Fritz, U., G. Petters, W. Matzanke, and M. Matzanke. 1995. Zur Schildkrötenfauna Nordsardiniens (1). Herpetofauna 99: 29-34.
- Hine, M. L. 1982. Notes on the marginated tortoise (Testudo marginata) in Greece and in captivity. British Herpetol. Soc. Bull. (5): 35-38.
- Iverson, J. B. 1992. A Revised Checklist with Distribution Maps of the Turtles of the World. Privately printed. Paust Printing, Richmond, Indiana. 363 pp.
- Mayer, R. 1992. Europäische Landschildkröten. Agrag-Verlag-Allgäu, Kempten/Allgäu. 297 pp.
- Schoepff, J. D. 1792-1801. Historia Testudinum iconibus illustrata. Palm, Erlangae. 136 pp. [Latin version of Naturgeschichte der Schildkröten mit Abbildungen erlautert. Palm, Erlangen. 160 pp. 1792: 1-32; 1793: 33-88; 1795: 89-136; 1801: 137-160.].