为什么
Subtitle: Di 1 ji
By: Ke xue hua bao bian ji bu bian ji ; Yang Dewei hui tu
Series: Ke xue hua bao cong shu
Publisher: Ke xue ji shu chu ban she
Published: 1958
Place of publication: Shanghai
Language: chi
Number of pages: 52
Other titles: Wei shi mo; Wei shen mo