Nong ye jing ji xue
By: Liu Yunqian zhu bian
Edition: Di 1 ban
Publisher: Ningxia ren min chu ban she; Ningxia xin hua shu dian fa xing
Published: 1986
Place of publication: Yinchuan Shi
Language: chi
Number of pages: 421
Subjects: Agriculture; Economic aspects
Notes: Includes bibliographical references.