| Authors(s) | Boycott, R., and O. Bourquin. | 
| Year | 1988 | 
| Title | The South African tortoise book. A guide to South African tortoises, terrapins and turtles. Southern Book Publ., Johannesburg. 148 pp. | 
| Authors(s) | Boycott, R., and O. Bourquin. | 
| Year | 1988 | 
| Title | The South African tortoise book. A guide to South African tortoises, terrapins and turtles. Southern Book Publ., Johannesburg. 148 pp. |