北京农业社会化服务体系发展趋势探析

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1673-3908|13|6|84-88

ISSN: 1673-3908

Source: 农业展望, Vol.13, Iss.6, 2017-01, pp. : 84-88

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Abstract