International Union of Biological Sciences. International Organization for Biological Control of Noxious Animals and Plants.. West Palearctic Regional Section
Titolo
Lutte integree en vergers = = Integrierten Pflanschutz im Ostbau = = Integrated control in Orchards = = Lotta integrata in frutticoltura : 5. Symposium OILB, Bolzano, 3-7 settembre 1974