榆林市农业现代化发展水平与效率的时空演变

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1000-8462|37|10|173-180

ISSN: 1000-8462

Source: 经济地理, Vol.37, Iss.10, 2017-01, pp. : 173-180

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Abstract