近三十年中原经济区县域粮食生产的时空变化分析

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1671-6132|15|12|53-57

ISSN: 1671-6132

Source: 南阳师范学院学报, Vol.15, Iss.12, 2016-01, pp. : 53-57

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Abstract