Yazar
Youxin Hu
2 cilt bulundu.
Cilt sonuçları
Wen xian xin xi jian suo yu li yong
Zhiyao Luo, Youxin Hu, Yonghong Zhang · Ke xue ji shu wen xian chu ban she
338 sayfa · 2003
Information retrieval / Electronic information resource searching / Information services / Information Storage and Retrieval / Information Services
意識・共識・興環保
Youxin Jian, China (Republic : 1949- ). Huan jing bao hu shu · Xing zheng yuan huan jing bao hu shu
228 sayfa · 1990
Environmental protection / Pollution