Publisher： 国家哲学社会科学学术期刊数据库

E-ISSN： 1000-7490|38|3|40-44

ISSN： 1000-7490

Source： 情报理论与实践, Vol.38, Iss.3, 2015-01, pp. : 40-44

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