Zhan sheng zi ran bao zheng feng shou
By: Zhonghua Renmin Gongheguo nong ye bu liang shi sheng chan zong ju bian
Edition: Di 1 ban
Publisher: Tong su du wu chu ban she; Fa xing zhe Xin hua shu dian
Published: 1956
Place of publication: Beijing
Language: chi
Number of pages: 70
Subjects: Agricultural conservation; Agricultural productivity