农田水利供给的有效性分析——以云南省为例

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1004-972x|volume|9|73-80

ISSN: 1004-972x

Source: 经济问题, Vol.volume, Iss.9, 2015-01, pp. : 73-80

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Abstract