农户分化状态下需求导向型农业技术推广机制研究
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1001-6139|volume|7|46-48
ISSN: 1001-6139
Source: 农业经济, Vol.volume, Iss.7, 2015-01, pp. : 46-48
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Abstract