> Mehrbändiges Werk
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1:
Handbook: rural extension 1 Basic issues and concepts ed. by Volker Hoffmann, Maria Gerster-Bentaya, Anja Christinck
Weikersheim: Margraf, 2009
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2:
Handbook: rural extension 2 Examples and background material ed. by Volker Hoffmann, Anja Christinck
Weikersheim: Margraf, 2009