Living Reviews in Landscape Research. Leibniz Centre for Agricultural Landscape Research (ZALF).
Chicago-referens (17:e uppl.)Living Reviews in Landscape Research. Leibniz Centre for Agricultural Landscape Research (ZALF).
MLA-referens (9:e uppl.)Living Reviews in Landscape Research. Leibniz Centre for Agricultural Landscape Research (ZALF).
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.