Why? Kuai le xue ke xue
By: Zhao Yingshan bian wen ; Li Huichao hui tu ; Gao Xi yi
Contributors: Lee, Hye-Cho; Gao, Xi
Series: Ke pu zhi shi dong man bai ke quan shu; Ke pu zhi shi dong man bai ke quan shu
Publisher: Shi jie zhi shi
Published: 2010
Place of publication: Beijing
Language: chi
Number of pages: 208
ISBN-13: 9787501238699
Subjects: Science; Encyclopedias, Children's; Children's nonfiction
Work titles: Why? Happy science series /written by Cho Young-Sun ; illustrated by Lee Hye-Cho
Notes: Translation of: Why? Happy science series /written by Cho Young-Sun ; illustrated by Lee Hye-Cho.

Originally published as "Why? Gyogwaseo gwahak 2hangnyeon" by YeaRimDang, Korea 2007.

Text in Chinese (simplified).

Huo Han guo jiao yu chan ye da jiang ji you xiu ke xue tu shu jiang.