P. Chantler and G. Driessens. 2000. 272 pp, 24 colour plates, several line drawings and 96 distribution maps. Pica Press, The Banks, Nr Robertsbridge, East Sussex TN32 5JY. ISBN 1-873403-83-6. UK£28.
Second, revised and updated edition of a guide that first appeared in 1995, and was reviewed by Don Turner in Bull. ABC 3: 54-55.