河北省粮食产量影响因素的实证分析

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1671-816x|15|3|166-170

ISSN: 1671-816x

Source: 山西农业大学学报:社会科学版, Vol.15, Iss.3, 2016-01, pp. : 166-170

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Abstract