Bibliografía (29 obras)
Lives of Snakes
2025
Guía de reptiles
2015
What Reptile?
2013
Frogs and Toads
2011
Collins Gem – Snakes
2008
Enzyklopädie der Schlangen
The new encyclopedia of snakes
2007
Reptiles & amphibians
300 frogs
Snakes
2006
Reptiles and Amphibians (Animal Fact Files)
2005
Encyclopedia of North American reptiles and amphibians
Animal fact files
Snakes of the world
2003
Frogs & toads of the world
Serpent
2000
Snake
1999
Practical Guide to Exotic Pets
Encyclopedia of Snakes
Collins Gem Snakes
Die Schlangen- Enzyklopädie. Alle Arten der Welt.
Cria y Cuidado de Las Serpientes
1998
Rattler!
1996
Keeping and Breeding Lizards
EXOTISCHE TERRARIUMDIEREN
1995
Birds
1993
Mammals
A-Z of Snake Keeping
1986
