Yazar

Zexian Yan

4 cilt bulundu.

Cilt sonuçları

Zexian Yan · Ren min chu ban she

319 sayfa · 2008

Sustainable development / Social planning

Zexian Yan · Guangdong ren min chu ban she

664 sayfa · 2002

Science / Technology / History

Zexian Yan · Henan sheng xin hua shu dian fa xing

375 sayfa · 1991

Education / Research / System analysis / Systems Theory

Zengjun Feng, Zexian Yan · Guangdong gao deng jiao yu chu ban she

252 sayfa · 1993

Education