Nong tian guan gai
By: Tan Jianglai bian [xie].
Edition: Di 1 ban.
Publisher: Henan ren min chu ban she; Henan sheng xin hua shu dian fa xing
Published: 1979
Place of publication: [Zhengzhou shi]
Language: chi
Number of pages: 280
Subjects: Irrigation.