商丘县科技志
Subtitle: zheng qiu yi jian gao
By: Shangqiu Xian ke xue ji shu wei yuan hui
Publisher: Shangqiu Xian ke xue ji shu wei yuan hui
Published: 1987
Place of publication: Shangqiu Xian
Language: chi
Number of pages: 130
Subjects: Science; History; Technology
Other titles: Shangqiu Xian ke ji zhi