Publisher： 国家哲学社会科学学术期刊数据库

E-ISSN： 1671-7252|29|3|79-85

ISSN： 1671-7252

Source： 北京农业职业学院学报, Vol.29, Iss.3, 2015-01, pp. : 79-85

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