Function orientation and key problem of ecological leisure agriculture in Beijing-Tianjin-Hebei metropolitan region[J]. Guangdong Agricultural Sciences, 2012, 39(23): 209-211. DOI: 10.3969/j.issn.1004-874X.2012.23.064
Citation:
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Function orientation and key problem of ecological leisure agriculture in Beijing-Tianjin-Hebei metropolitan region[J]. Guangdong Agricultural Sciences, 2012, 39(23): 209-211. DOI: 10.3969/j.issn.1004-874X.2012.23.064
|
Function orientation and key problem of ecological leisure agriculture in Beijing-Tianjin-Hebei metropolitan region[J]. Guangdong Agricultural Sciences, 2012, 39(23): 209-211. DOI: 10.3969/j.issn.1004-874X.2012.23.064
Citation:
|
Function orientation and key problem of ecological leisure agriculture in Beijing-Tianjin-Hebei metropolitan region[J]. Guangdong Agricultural Sciences, 2012, 39(23): 209-211. DOI: 10.3969/j.issn.1004-874X.2012.23.064
|