Title: Xiao xi bei jing ji wen ti yan jiu : di qu jing ji yi ti hua, chan ye ji qun, san nong wen ti /
Authors: Nie, Hualin.; Gao, Kaishan.; Bai, Qirui.
Publisher: Zhongguo she hui ke xue chu ban she,
Year: 2006
Subjects: Agriculture and state China, Northwest.; China, Northwest Economic conditions