Publisher： 国家哲学社会科学学术期刊数据库

E-ISSN： 1674-8646|7|11|18-19

ISSN： 1674-8646

Source： 黑龙江科学, Vol.7, Iss.11, 2016-01, pp. : 18-19

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