大竹县林业技术推广工作探析

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1673-5919|volume|5|35-36

ISSN: 1673-5919

Source: 中国林业经济, Vol.volume, Iss.5, 2017-01, pp. : 35-36

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Abstract