京津冀协同发展背景下休闲农业园区定位与思考

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1002-4433|volume|9|232-236

ISSN: 1002-4433

Source: 世界农业, Vol.volume, Iss.9, 2016-01, pp. : 232-236

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Abstract