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francoise lieberherr gardiol
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Environmental education for the farming community
Françoise Lieberherr-Gardiol · Council of Europe
109 sayfa · 1987
Agricultural education / Agriculture / Environmental aspects / Environmental aspects of Agriculture / Environmental education
Sur nos monts quand la nature ...
Françoise Lieberherr-Gardiol, Unesco. Programme on Man and the Biosphere · CERME/IER [Institut d'économie rurale, Centre d'études rurales, montagnardes et de l'environment
199 sayfa · 1988
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