民国时期胶东半岛农技推广机构的演进及特点

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1674-327x|18|6|37-39

ISSN: 1674-327x

Source: 辽宁工业大学学报:社会科学版, Vol.18, Iss.6, 2016-01, pp. : 37-39

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Abstract