@book{69,
  author = {Holland D.G.},
  title = {A key to the larvae, pupae and adults of the British species of Elminthidae. (Sci. (Scientific publication no. 26).},
  year = {1972},
  month = {1972},
  publisher = {Freshwater Biological Association},
  address = {Ambleside},
  language = {eng},
}