British knapweeds
Subtitle: a study in synthetic taxonomy
By: by E.M. Marsden-Jones and W.B. Turrill.
Contributors: Turrill, W. B.
Series: Ray Society publications -- no.138; Ray Society publications -- no.138.
Publisher: Bernard Quaritch for the Ray Society
Published: 1954
Place of publication: London
Language: eng
Number of pages: 201