Nong tian guan gai
By: Hebei nong ye da xue "Nong dian guan gai" bian xie zu bian.
Contributors: Hebei nong ye da xue. "Nong dian guan gai" bian xie zhu.
Edition: Di 1 ban
Series: Nong cun ke xue shi yan cong shu
Publisher: Ke xue chu ban she
Published: 1978
Place of publication: Beijing
Language: chi
Number of pages: 192
Subjects: Irrigation -- China.