榆树县科技志
By: Yushu Xian ke xue ji shu wei yuan hui, Yushu Xian ke xue ji shu xie hui bian
Contributors: Yushu Xian ke xue ji shu xie hui
Publisher: Yushu Xian ke xue ji shu wei yuan hui
Published: 1990
Place of publication: Yushu Xian
Language: chi
Number of pages: 546
Subjects: Science; History; Technology
Other titles: Yushu Xian ke ji zhi