【作者(必填)】Matthew A. Andersen1,*, Wenxing Song2
【文题(必填)】
The Economic impact of public agricultural research and development in the United States
【年份(必填)】2013
【全文链接或数据库名称(选填)】
Wiley InterSciencehttp://onlinelibrary.wiley.com/doi/10.1111/agec.12011/abstract?deniedAccessCustomisedMessage=&userIsAuthenticated=true