Bibliography

1997
Pollard E., Greatorex-Davies Nick, Thomas J. A. (1997) Drought reduces breeding success of the butterfly Aglais urticae. Ecological Entomology, , 22, 315-318
Preston Christopher D., Croft J. M. (1997) Aquatic plants in Britain and Ireland.. , , , 365 pp.
Haes E.C.M., Harding Paul T. (1997) Atlas of grasshoppers and allied insects in Britain and Ireland. , , ,