Yazar
Ruofeng Niu
12 cilt bulundu.
Ruofeng Niu · Nong ye chu ban she
288 sayfa · 1985
Agricultural innovations / Economic aspects / Agriculture / Research
Ruofeng Niu · Xin hua shu dian Beijing fa xing suo fa xing
1130 sayfa · 1989
Agriculture / Handbooks, manuals / Economic aspects
Ruofeng Niu · Zhongguo she hui ke xue chu ban she
244 sayfa · 2004
Agriculture and state / Agriculture / Rural development / Economic aspects
Ruofeng Niu · Xin hua shu dian jing xiao
195 sayfa · 1991
Agriculture / Economic aspects / Economic conditions
Zhicheng Liu, Ruofeng Niu · Xin hua shu dian Beijing fa xing suo fa xing
449 sayfa · 1990
Agriculture / Economic aspects
Ruofeng Niu, Fan Chen · Jing xiao zhe Xin hua shu dian zong dian Beijing fa xing suo fa xing
523 sayfa · 1993
Agriculture / Economic aspects