Narrow-leaved helleborine Cephalanthera longifolia : report on the 1999 project.
Wheeler, Belinda R.
Species Recovery Programme.
English Nature (Agency)
Plantlife.
Center Parcs.
London : Plantlife,
2000.
Cover title.
"Plantlife's Back for the Brink Project for this species is supported by English Nature's Species Recovery Programme and Center Parcs"