un doc arte sur toutes les possibilités du chanvre, trés bien dévellopé
http://www.dailymotion.com/video/x5cmmk_le-chanvre-une-plante-aux-multiples_news
http://www.dailymotion.com/video/x5dktl_le-chanvre-une-plante-aux-multiples_news
http://www.dailymotion.com/video/x5fh6s_le-chanvre-une-plante-aux-multiples_news
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