Yazar
Yonggang Yang
3 cilt bulundu.
Cilt sonuçları
Jin dai Zhongguo ke xue jia
Weibin Shen, Yonggang Yang · Xin hua shu dian Shanghai fa xing suo jing xiao
263 sayfa · 1988
Biography / Scientists
Kua shi ji de chuang kou
Yonggang Zhao, Xueping Yang · Shandong you yi chu ban she
86 sayfa · 2013
Pictorial works / Social conditions / Rural development