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Ecological Crop Geography
Klages, Karl Henry William, (1942)
France : an applied geography
House, John William, (1978)
Frankreich : ein regionalgeographischer Überblick ; mit 50 Tabellen
Maier, Jörg, (1990)
Study on environmental consequences of Sheep and Goat farming and of the Sheep and Goat premium system
Poux, Xavier, (2006)