New atlas of the British & Irish flora: an atlas of the vascular plants of Britain, Ireland, the Isle of Man and the Channel Islands [CD-ROM]
Preston, C.D.; Pearman, D.A.; Dines, T.D. (Ed.) (2002). New atlas of the British & Irish flora: an atlas of the vascular plants of Britain, Ireland, the Isle of Man and the Channel Islands [CD-ROM]. Oxford University Press: Oxford. ISBN 0-19-851067-5.
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