Plant species and plant communities : proceedings of the International Symposium held at Nijmegen November 11-12, 1976 in honour of Professor Dr Victor Westhoff ... / edited by Eddy van der Maarel and Marinus J.A. Werger
Published
The Hague [etc.] ; London : W. Junk ; [Brentford] : [Distributed by Kluwer], 1978