Amphibians and Reptiles
of Surrey

J Wycherley, R Anstis
2001

Atlas of Amphibians
and Reptiles in Britain

H R Arnold
NREC Copyright 1995

British Reptiles and Amphibians

Richard L. E. Ford
1954 reprinted 1963

The British Grass Snake
 

Robert Vaughan
2007

Lives of British Lizards
 

Colin Simms
1970

British Snakes
 

Leonard G. Appleby
1971

A Natural History of the British Herpetofauna
 

Beebee and Griffiths
2000