Publisher： 国家哲学社会科学学术期刊数据库

E-ISSN： 1005-9121|38|7|17-21

ISSN： 1005-9121

Source： 中国农业资源与区划, Vol.38, Iss.7, 2017-01, pp. : 17-21

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next