Organic farming in Europe : economics and policy
Universität Hohenheim
Hiltrud Nieberg, Frank Offermann, Katrin Zander.
Universität Hohenheim 2007 Organic farming in Europe : economics and policy Vol. 13
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Heidrun Moschitz, Matthias Stolze.
Universität Hohenheim 2007 Organic farming in Europe : economics and policy Vol. 12
Anna M. Häring, Stephan Dabbert.
Universität Hohenheim 2004 Organic farming in Europe : economics and policy Vol. 11