Blake, S.F. Geographical guide to floras of the world: an annotated list with special reference to useful plants and common plant names S.F. Blake. - Konigstein Otto Koettz Science Pub. 1974 - 742p., 23cm - (Pt.II Western Europe). . ISBN: 3-87429-060-3. Dewey Class. No.: 581.9 / B60G