Lever, C., 1977
The Naturalized Animals of the British Isles
An encyclopaedic reference on introduced vertebrates: fish, herptiles, birds and mammals, although now rather dated.
22 species have full accounts, while a further 36 are covered in the addenda.
||Hutchinson of London
||0 09 127790 6
||Ink sketches of the animals, Brit. Isles distribution maps, world map of origins.