Denys Ovenden

A Field Guide to the Insects of Britain and Northern Europe (Collins Field Guide)

By Michael Chinery, Gordon Riley, Denys Ovenden, Brian Hargreaves

Field Guide to the Insects of Britain and Northern Europe

By Michael Chinery, Gordon Riley, Denys Ovenden, Brian Hargreaves

Green Guide to Seashore Life of Britain and Europe

By Bob Gibbons, Denys Ovenden, Melanie Perkins

Guide to the Reptiles and Amphibians of Britain and Ireland

By Peter Roberts, Denys Ovenden