Yan Zheng

No biography available.

Works (6)

Cover of Xin ri yu neng li kao shi zhen ti jie xi + quan zhen mo ni

Xin ri yu neng li kao shi zhen ti jie xi + quan zhen mo ni

Cover of Astrogeological events in China

Astrogeological events in China

Cover of Astrogeological events in China

Astrogeological events in China

Cover of Managing corporate information systems evolution and maintenance

Managing corporate information systems evolution and maintenance

Cover of Ren shi zi ran

Cover of Wai jiao ji shi

Wai jiao ji shi