Pest Management in Organic FarmingUrs Niggli, Vincenzo Vacante, Massimo Benuzzi, Serge Kreiter · First published 2017Open the Tome
Handbook of Organic Food Safety and Quality Woodhead Publishing Series in Food Science Technology and Nutrition HardcoverUrs Niggli · First published 2007Open the Tome
Bekämpfung von Rumex obtusifolius L. und Bestandeslenkung in intensiv bewirtschafteten NaturwiesenUrs Niggli · First published 1985Open the Tome
