* d ' Aguilar, J., Dommanget, JL., and Prechac, R. ( 1986 ) A field guide to the Dragonflies of Britain, Europe and North Africa.
* d ' Aguilar, J., Dommanget, JL., and Prechac, R. ( 1986 ) A field guide to the Dragonflies of Britain, Europe and North Africa.
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