Guide to the identification of some of the more difficult vascular plant species
Subtitle: with particular application to the Watsonian vice-counties 66-70, Durham, Northumbria and Cumbria
By: M.J. Wigginton ; G.G. Graham.
Contributors: Graham, G. G. 1917-; Nature Conservancy Council.
Series: England Field Unit Occasional paper -- no.1
Publisher: Nature Conservancy Council
Published: 1989
Place of publication: Peterborough
Language: eng
Number of pages: 145