官渡区科技志
By: Guandu Qu ke xue ji shu wei yuan hui bian
Series: Kunming Shi Guandu Qu di fang zhi cong shu
Publisher: Guandu Qu ke xue ji shu wei yuan hui
Published: 1993
Place of publication: Guandu Qu
Language: chi
Number of pages: 268
Subjects: Science; History; Technology
Other titles: Guandu Qu ke ji zhi