(2005). Natural forests in the temperate zone of Europe: Biological, social and economic aspects. Swiss Federal Research Inst. WSL.
Chicago-Zitierstil (17. Ausg.)Natural Forests in the Temperate Zone of Europe: Biological, Social and Economic Aspects. Birmensdorf: Swiss Federal Research Inst. WSL, 2005.
MLA-Zitierstil (9. Ausg.)Natural Forests in the Temperate Zone of Europe: Biological, Social and Economic Aspects. Swiss Federal Research Inst. WSL, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.