Title: Ding Xian nong cun gong ye diao cha ... 25 [1936]. Ting-hsien, Zhong hua ping min jiao yu cu jin hui
First published: 1971
Subjects: Industries, Tinghsien, China (Hopei Province), Zhong hua ping min jiao yu cu jin hui
LC classification: HC428.T56 C53 1936a