Janssen, Jan P. books & textbook
Netherlands-Wetlands: Proceedings of a Symposium held in Arnhem, The Netherlands, December 1989 (Developments in Hydrobiology)
Springer /2012-11-05 Paperback / 335 Pages
isbn-10: 9401049041 / isbn-13: 9789401049047
Nature Management by Grazing and Cutting: On the ecological significance of grazing and cutting regimes applied to restore former species-rich grassland communities in the Netherlands (Geobotany, 14)
Springer /1989-03-31 Hardcover / 410 Pages
isbn-10: 0792300688 / isbn-13: 9780792300687