Holger Vetter

• Hermann's Tortoise, Boettger's and Dalmatian Tortoises
• Leopard and African Spurred Tortoise
• Panther- und Spornschildkröte
• TERRALOG
• Terralog: Turtles of the World
• Turtles of the World
• Turtles of the World Volume 4: East and South Asia
• TERRALOG : Turtles of the World, Vol. 5